Nervous System Anatomy

Front 1

What does the n nervous system do?

Back 1

plays a major role in homeostasis by keeping other body systems coordinate and regulate performance

Front 2

What is the nervous system responsible for?

Back 2

communication and control throughout the body

Front 3

How many nerual functions?

Back 3

Three, sensing, interpreting and acting.

Front 4

Neurologists

Back 4

physicians who specialize in the diagnosis, treatment and prevention of neurolgic disorders.

Front 5

How my sub-systems does the system carry out?

Back 5

2, central nervous system and peripheral nervous system

Front 6

Central Nervous System CNS

Back 6

is composed of the brain and the spinal cord, only site of the nerve cells, interneurons

Front 7

Interneurons

Back 7

nerve cells, which connect sensory and motor neutrons

Front 8

Peripheral Nervous System PNS

Back 8

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 9

Peripheral Nervous System PNS

Back 9

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 10

How many cranial nerves?

Back 10

12 pairs

Front 11

How many spinal nerves

Back 11

31 pairs

Front 12

Peripheral Nervous System PNS

Back 12

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 13

How many cranial nerves?

Back 13

12 pairs

Front 14

How many spinal nerves

Back 14

31 pairs

Front 15

How many further nerves are PNS divided into?

Back 15

2 voluntary and involuntary

Front 16

Peripheral Nervous System PNS

Back 16

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 17

How many cranial nerves?

Back 17

12 pairs

Front 18

How many spinal nerves

Back 18

31 pairs

Front 19

How many further nerves are PNS divided into?

Back 19

2 voluntary and involuntary

Front 20

Involuntary and voluntary nerves

Back 20

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 21

Peripheral Nervous System PNS

Back 21

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 22

How many cranial nerves?

Back 22

12 pairs

Front 23

How many spinal nerves

Back 23

31 pairs

Front 24

How many further nerves are PNS divided into?

Back 24

2 voluntary and involuntary

Front 25

Involuntary and voluntary nerves

Back 25

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 26

PNS nerves two subsystems

Back 26

Somatic and autonomic

Front 27

Peripheral Nervous System PNS

Back 27

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 28

How many cranial nerves?

Back 28

12 pairs

Front 29

How many spinal nerves

Back 29

31 pairs

Front 30

How many further nerves are PNS divided into?

Back 30

2 voluntary and involuntary

Front 31

Involuntary and voluntary nerves

Back 31

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 32

PNS nerves two subsystems

Back 32

Somatic and autonomic

Front 33

Somatic system

Back 33

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 34

Peripheral Nervous System PNS

Back 34

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 35

How many cranial nerves?

Back 35

12 pairs

Front 36

How many spinal nerves

Back 36

31 pairs

Front 37

How many further nerves are PNS divided into?

Back 37

2 voluntary and involuntary

Front 38

Involuntary and voluntary nerves

Back 38

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 39

PNS nerves two subsystems

Back 39

Somatic and autonomic

Front 40

Somatic system

Back 40

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 41

Autonomic

Back 41

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 42

Peripheral Nervous System PNS

Back 42

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 43

How many cranial nerves?

Back 43

12 pairs

Front 44

How many spinal nerves

Back 44

31 pairs

Front 45

How many further nerves are PNS divided into?

Back 45

2 voluntary and involuntary

Front 46

Involuntary and voluntary nerves

Back 46

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 47

PNS nerves two subsystems

Back 47

Somatic and autonomic

Front 48

Somatic system

Back 48

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 49

Autonomic

Back 49

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 50

Neurons

Back 50

Or parenchymaI cells, cells that carry out work of the system

Front 51

Peripheral Nervous System PNS

Back 51

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 52

Stromal cells

Back 52

Or glia, the cells that provide a supportive function

Front 53

Glia

Back 53

Or stromal, the cells that provide a supportive function

Front 54

How many cranial nerves?

Back 54

12 pairs

Front 55

How many spinal nerves

Back 55

31 pairs

Front 56

How many further nerves are PNS divided into?

Back 56

2 voluntary and involuntary

Front 57

Involuntary and voluntary nerves

Back 57

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 58

PNS nerves two subsystems

Back 58

Somatic and autonomic

Front 59

Somatic system

Back 59

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 60

Autonomic

Back 60

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 61

Neurons

Back 61

Or parenchymaI cells, cells that carry out work of the system

Front 62

Parenchymal cells

Back 62

Or neurons, cells that carry out work of the system

Front 63

Peripheral Nervous System PNS

Back 63

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 64

Stromal cells

Back 64

Or glia, the cells that provide a supportive function

Front 65

Glia

Back 65

Or stromal, the cells that provide a supportive function

Front 66

Basic unit of the nervous sustem

Back 66

The nerve cell or neuron

Front 67

How many cranial nerves?

Back 67

12 pairs

Front 68

How many spinal nerves

Back 68

31 pairs

Front 69

How many further nerves are PNS divided into?

Back 69

2 voluntary and involuntary

Front 70

Involuntary and voluntary nerves

Back 70

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 71

PNS nerves two subsystems

Back 71

Somatic and autonomic

Front 72

Somatic system

Back 72

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 73

Autonomic

Back 73

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 74

Neurons

Back 74

Or parenchymaI cells, cells that carry out work of the system

Front 75

Parenchymal cells

Back 75

Or neurons, cells that carry out work of the system

Front 76

Peripheral Nervous System PNS

Back 76

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 77

Stromal cells

Back 77

Or glia, the cells that provide a supportive function

Front 78

Glia

Back 78

Or stromal, the cells that provide a supportive function

Front 79

Basic unit of the nervous sustem

Back 79

The nerve cell or neuron

Front 80

Dendrites

Back 80

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 81

How many cranial nerves?

Back 81

12 pairs

Front 82

How many spinal nerves

Back 82

31 pairs

Front 83

How many further nerves are PNS divided into?

Back 83

2 voluntary and involuntary

Front 84

Involuntary and voluntary nerves

Back 84

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 85

PNS nerves two subsystems

Back 85

Somatic and autonomic

Front 86

Somatic system

Back 86

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 87

Autonomic

Back 87

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 88

Neurons

Back 88

Or parenchymaI cells, cells that carry out work of the system

Front 89

Parenchymal cells

Back 89

Or neurons, cells that carry out work of the system

Front 90

Peripheral Nervous System PNS

Back 90

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 91

Stromal cells

Back 91

Or glia, the cells that provide a supportive function

Front 92

Glia

Back 92

Or stromal, the cells that provide a supportive function

Front 93

Basic unit of the nervous sustem

Back 93

The nerve cell or neuron

Front 94

Dendrites

Back 94

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 95

Neural impulses

Back 95

Action potentials

Front 96

How many cranial nerves?

Back 96

12 pairs

Front 97

How many spinal nerves

Back 97

31 pairs

Front 98

How many further nerves are PNS divided into?

Back 98

2 voluntary and involuntary

Front 99

Involuntary and voluntary nerves

Back 99

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 100

PNS nerves two subsystems

Back 100

Somatic and autonomic

Front 101

Somatic system

Back 101

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 102

Autonomic

Back 102

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 103

Neurons

Back 103

Or parenchymaI cells, cells that carry out work of the system

Front 104

Parenchymal cells

Back 104

Or neurons, cells that carry out work of the system

Front 105

Peripheral Nervous System PNS

Back 105

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 106

Stromal cells

Back 106

Or glia, the cells that provide a supportive function

Front 107

Glia

Back 107

Or stromal, the cells that provide a supportive function

Front 108

Basic unit of the nervous sustem

Back 108

The nerve cell or neuron

Front 109

Dendrites

Back 109

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 110

Neural impulses

Back 110

Action potentials

Front 111

Axon

Back 111

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 112

How many cranial nerves?

Back 112

12 pairs

Front 113

How many spinal nerves

Back 113

31 pairs

Front 114

How many further nerves are PNS divided into?

Back 114

2 voluntary and involuntary

Front 115

Involuntary and voluntary nerves

Back 115

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 116

PNS nerves two subsystems

Back 116

Somatic and autonomic

Front 117

Somatic system

Back 117

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 118

Autonomic

Back 118

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 119

Neurons

Back 119

Or parenchymaI cells, cells that carry out work of the system

Front 120

Parenchymal cells

Back 120

Or neurons, cells that carry out work of the system

Front 121

Peripheral Nervous System PNS

Back 121

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 122

Stromal cells

Back 122

Or glia, the cells that provide a supportive function

Front 123

Glia

Back 123

Or stromal, the cells that provide a supportive function

Front 124

Basic unit of the nervous sustem

Back 124

The nerve cell or neuron

Front 125

Dendrites

Back 125

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 126

Neural impulses

Back 126

Action potentials

Front 127

Axon

Back 127

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 128

Terminal fibers

Back 128

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 129

How many cranial nerves?

Back 129

12 pairs

Front 130

How many spinal nerves

Back 130

31 pairs

Front 131

How many further nerves are PNS divided into?

Back 131

2 voluntary and involuntary

Front 132

Involuntary and voluntary nerves

Back 132

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 133

PNS nerves two subsystems

Back 133

Somatic and autonomic

Front 134

Somatic system

Back 134

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 135

Autonomic

Back 135

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 136

Neurons

Back 136

Or parenchymaI cells, cells that carry out work of the system

Front 137

Parenchymal cells

Back 137

Or neurons, cells that carry out work of the system

Front 138

Peripheral Nervous System PNS

Back 138

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 139

Stromal cells

Back 139

Or glia, the cells that provide a supportive function

Front 140

Glia

Back 140

Or stromal, the cells that provide a supportive function

Front 141

Basic unit of the nervous sustem

Back 141

The nerve cell or neuron

Front 142

Dendrites

Back 142

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 143

Neural impulses

Back 143

Action potentials

Front 144

Axon

Back 144

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 145

Terminal fibers

Back 145

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 146

What coats outside neurons

Back 146

The axon is coated by myelin sheath,

Front 147

How many cranial nerves?

Back 147

12 pairs

Front 148

How many spinal nerves

Back 148

31 pairs

Front 149

How many further nerves are PNS divided into?

Back 149

2 voluntary and involuntary

Front 150

Involuntary and voluntary nerves

Back 150

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 151

PNS nerves two subsystems

Back 151

Somatic and autonomic

Front 152

Somatic system

Back 152

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 153

Autonomic

Back 153

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 154

Neurons

Back 154

Or parenchymaI cells, cells that carry out work of the system

Front 155

Parenchymal cells

Back 155

Or neurons, cells that carry out work of the system

Front 156

Peripheral Nervous System PNS

Back 156

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 157

Stromal cells

Back 157

Or glia, the cells that provide a supportive function

Front 158

Glia

Back 158

Or stromal, the cells that provide a supportive function

Front 159

Basic unit of the nervous sustem

Back 159

The nerve cell or neuron

Front 160

Dendrites

Back 160

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 161

Neural impulses

Back 161

Action potentials

Front 162

Axon

Back 162

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 163

Terminal fibers

Back 163

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 164

What coats outside neurons

Back 164

The axon is coated by myelin sheath,

Front 165

Myelin sheath

Back 165

Substance produced by schwann cells that coat the axons

Front 166

How many cranial nerves?

Back 166

12 pairs

Front 167

How many spinal nerves

Back 167

31 pairs

Front 168

How many further nerves are PNS divided into?

Back 168

2 voluntary and involuntary

Front 169

Involuntary and voluntary nerves

Back 169

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 170

PNS nerves two subsystems

Back 170

Somatic and autonomic

Front 171

Somatic system

Back 171

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 172

Autonomic

Back 172

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 173

Neurons

Back 173

Or parenchymaI cells, cells that carry out work of the system

Front 174

Parenchymal cells

Back 174

Or neurons, cells that carry out work of the system

Front 175

Peripheral Nervous System PNS

Back 175

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 176

Stromal cells

Back 176

Or glia, the cells that provide a supportive function

Front 177

Glia

Back 177

Or stromal, the cells that provide a supportive function

Front 178

Basic unit of the nervous sustem

Back 178

The nerve cell or neuron

Front 179

Dendrites

Back 179

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 180

Neural impulses

Back 180

Action potentials

Front 181

Axon

Back 181

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 182

Terminal fibers

Back 182

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 183

What coats outside neurons

Back 183

The axon is coated by myelin sheath,

Front 184

Myelin sheath

Back 184

Substance produced by schwann cells that coat the axons

Front 185

Synapse

Back 185

Space between the terminal fibers and dendrites of the next cell

Front 186

How many cranial nerves?

Back 186

12 pairs

Front 187

How many spinal nerves

Back 187

31 pairs

Front 188

How many further nerves are PNS divided into?

Back 188

2 voluntary and involuntary

Front 189

Involuntary and voluntary nerves

Back 189

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 190

PNS nerves two subsystems

Back 190

Somatic and autonomic

Front 191

Somatic system

Back 191

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 192

Autonomic

Back 192

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 193

Neurons

Back 193

Or parenchymaI cells, cells that carry out work of the system

Front 194

Parenchymal cells

Back 194

Or neurons, cells that carry out work of the system

Front 195

Peripheral Nervous System PNS

Back 195

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 196

Stromal cells

Back 196

Or glia, the cells that provide a supportive function

Front 197

Glia

Back 197

Or stromal, the cells that provide a supportive function

Front 198

Basic unit of the nervous sustem

Back 198

The nerve cell or neuron

Front 199

Dendrites

Back 199

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 200

Neural impulses

Back 200

Action potentials

Front 201

Axon

Back 201

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 202

Terminal fibers

Back 202

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 203

What coats outside neurons

Back 203

The axon is coated by myelin sheath,

Front 204

Myelin sheath

Back 204

Substance produced by schwann cells that coat the axons

Front 205

Synapse

Back 205

Space between the terminal fibers and dendrites of the next cell

Front 206

How many cranial nerves?

Back 206

12 pairs

Front 207

Glia

Back 207

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 208

How many spinal nerves

Back 208

31 pairs

Front 209

How many further nerves are PNS divided into?

Back 209

2 voluntary and involuntary

Front 210

Involuntary and voluntary nerves

Back 210

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 211

PNS nerves two subsystems

Back 211

Somatic and autonomic

Front 212

Somatic system

Back 212

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 213

Autonomic

Back 213

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 214

Neurons

Back 214

Or parenchymaI cells, cells that carry out work of the system

Front 215

Parenchymal cells

Back 215

Or neurons, cells that carry out work of the system

Front 216

Peripheral Nervous System PNS

Back 216

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 217

Stromal cells

Back 217

Or glia, the cells that provide a supportive function

Front 218

Glia

Back 218

Or stromal, the cells that provide a supportive function

Front 219

Basic unit of the nervous sustem

Back 219

The nerve cell or neuron

Front 220

Dendrites

Back 220

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 221

Neural impulses

Back 221

Action potentials

Front 222

Axon

Back 222

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 223

Terminal fibers

Back 223

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 224

What coats outside neurons

Back 224

The axon is coated by myelin sheath,

Front 225

Myelin sheath

Back 225

Substance produced by schwann cells that coat the axons

Front 226

Synapse

Back 226

Space between the terminal fibers and dendrites of the next cell

Front 227

How many cranial nerves?

Back 227

12 pairs

Front 228

Glia

Back 228

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 229

Astrocytes

Back 229

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 230

How many spinal nerves

Back 230

31 pairs

Front 231

How many further nerves are PNS divided into?

Back 231

2 voluntary and involuntary

Front 232

Involuntary and voluntary nerves

Back 232

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 233

PNS nerves two subsystems

Back 233

Somatic and autonomic

Front 234

Somatic system

Back 234

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 235

Autonomic

Back 235

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 236

Neurons

Back 236

Or parenchymaI cells, cells that carry out work of the system

Front 237

Parenchymal cells

Back 237

Or neurons, cells that carry out work of the system

Front 238

Peripheral Nervous System PNS

Back 238

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 239

Stromal cells

Back 239

Or glia, the cells that provide a supportive function

Front 240

Glia

Back 240

Or stromal, the cells that provide a supportive function

Front 241

Basic unit of the nervous sustem

Back 241

The nerve cell or neuron

Front 242

Dendrites

Back 242

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 243

Neural impulses

Back 243

Action potentials

Front 244

Axon

Back 244

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 245

Terminal fibers

Back 245

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 246

What coats outside neurons

Back 246

The axon is coated by myelin sheath,

Front 247

Myelin sheath

Back 247

Substance produced by schwann cells that coat the axons

Front 248

Synapse

Back 248

Space between the terminal fibers and dendrites of the next cell

Front 249

How many cranial nerves?

Back 249

12 pairs

Front 250

Glia

Back 250

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 251

Astrocytes

Back 251

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 252

Blood-brain barrier BBB

Back 252

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 253

How many parts does the brain have

Back 253

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 254

How many spinal nerves

Back 254

31 pairs

Front 255

How many further nerves are PNS divided into?

Back 255

2 voluntary and involuntary

Front 256

Involuntary and voluntary nerves

Back 256

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 257

PNS nerves two subsystems

Back 257

Somatic and autonomic

Front 258

Somatic system

Back 258

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 259

Autonomic

Back 259

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 260

Neurons

Back 260

Or parenchymaI cells, cells that carry out work of the system

Front 261

Parenchymal cells

Back 261

Or neurons, cells that carry out work of the system

Front 262

Peripheral Nervous System PNS

Back 262

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 263

Stromal cells

Back 263

Or glia, the cells that provide a supportive function

Front 264

Glia

Back 264

Or stromal, the cells that provide a supportive function

Front 265

Basic unit of the nervous sustem

Back 265

The nerve cell or neuron

Front 266

Dendrites

Back 266

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 267

Neural impulses

Back 267

Action potentials

Front 268

Axon

Back 268

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 269

Terminal fibers

Back 269

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 270

What coats outside neurons

Back 270

The axon is coated by myelin sheath,

Front 271

Myelin sheath

Back 271

Substance produced by schwann cells that coat the axons

Front 272

Synapse

Back 272

Space between the terminal fibers and dendrites of the next cell

Front 273

How many cranial nerves?

Back 273

12 pairs

Front 274

Glia

Back 274

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 275

Astrocytes

Back 275

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 276

Blood-brain barrier BBB

Back 276

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 277

How many parts does the brain have

Back 277

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 278

Largest portion of the brain

Back 278

The cerebrum

Front 279

How many spinal nerves

Back 279

31 pairs

Front 280

How many further nerves are PNS divided into?

Back 280

2 voluntary and involuntary

Front 281

Involuntary and voluntary nerves

Back 281

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 282

PNS nerves two subsystems

Back 282

Somatic and autonomic

Front 283

Somatic system

Back 283

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 284

Autonomic

Back 284

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 285

Neurons

Back 285

Or parenchymaI cells, cells that carry out work of the system

Front 286

Parenchymal cells

Back 286

Or neurons, cells that carry out work of the system

Front 287

Peripheral Nervous System PNS

Back 287

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 288

Stromal cells

Back 288

Or glia, the cells that provide a supportive function

Front 289

Glia

Back 289

Or stromal, the cells that provide a supportive function

Front 290

Basic unit of the nervous sustem

Back 290

The nerve cell or neuron

Front 291

Dendrites

Back 291

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 292

Neural impulses

Back 292

Action potentials

Front 293

Axon

Back 293

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 294

Terminal fibers

Back 294

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 295

What coats outside neurons

Back 295

The axon is coated by myelin sheath,

Front 296

Myelin sheath

Back 296

Substance produced by schwann cells that coat the axons

Front 297

Synapse

Back 297

Space between the terminal fibers and dendrites of the next cell

Front 298

How many cranial nerves?

Back 298

12 pairs

Front 299

Glia

Back 299

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 300

Astrocytes

Back 300

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 301

Blood-brain barrier BBB

Back 301

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 302

How many parts does the brain have

Back 302

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 303

Largest portion of the brain

Back 303

The cerebrum

Front 304

The cerebrum

Back 304

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 305

How many spinal nerves

Back 305

31 pairs

Front 306

How many further nerves are PNS divided into?

Back 306

2 voluntary and involuntary

Front 307

Involuntary and voluntary nerves

Back 307

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 308

PNS nerves two subsystems

Back 308

Somatic and autonomic

Front 309

Somatic system

Back 309

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 310

Autonomic

Back 310

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 311

Neurons

Back 311

Or parenchymaI cells, cells that carry out work of the system

Front 312

Parenchymal cells

Back 312

Or neurons, cells that carry out work of the system

Front 313

Peripheral Nervous System PNS

Back 313

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 314

Stromal cells

Back 314

Or glia, the cells that provide a supportive function

Front 315

Glia

Back 315

Or stromal, the cells that provide a supportive function

Front 316

Basic unit of the nervous sustem

Back 316

The nerve cell or neuron

Front 317

Dendrites

Back 317

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 318

Neural impulses

Back 318

Action potentials

Front 319

Axon

Back 319

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 320

Terminal fibers

Back 320

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 321

What coats outside neurons

Back 321

The axon is coated by myelin sheath,

Front 322

Myelin sheath

Back 322

Substance produced by schwann cells that coat the axons

Front 323

Synapse

Back 323

Space between the terminal fibers and dendrites of the next cell

Front 324

How many cranial nerves?

Back 324

12 pairs

Front 325

Glia

Back 325

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 326

Astrocytes

Back 326

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 327

Blood-brain barrier BBB

Back 327

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 328

How many parts does the brain have

Back 328

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 329

Largest portion of the brain

Back 329

The cerebrum

Front 330

The cerebrum

Back 330

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 331

What covers the cerebrum a surfaces

Back 331

Gray matter

Front 332

How many spinal nerves

Back 332

31 pairs

Front 333

How many further nerves are PNS divided into?

Back 333

2 voluntary and involuntary

Front 334

Involuntary and voluntary nerves

Back 334

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 335

PNS nerves two subsystems

Back 335

Somatic and autonomic

Front 336

Somatic system

Back 336

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 337

Autonomic

Back 337

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 338

Neurons

Back 338

Or parenchymaI cells, cells that carry out work of the system

Front 339

Parenchymal cells

Back 339

Or neurons, cells that carry out work of the system

Front 340

Peripheral Nervous System PNS

Back 340

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 341

Stromal cells

Back 341

Or glia, the cells that provide a supportive function

Front 342

Glia

Back 342

Or stromal, the cells that provide a supportive function

Front 343

Basic unit of the nervous sustem

Back 343

The nerve cell or neuron

Front 344

Dendrites

Back 344

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 345

Neural impulses

Back 345

Action potentials

Front 346

Axon

Back 346

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 347

Terminal fibers

Back 347

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 348

What coats outside neurons

Back 348

The axon is coated by myelin sheath,

Front 349

Myelin sheath

Back 349

Substance produced by schwann cells that coat the axons

Front 350

Synapse

Back 350

Space between the terminal fibers and dendrites of the next cell

Front 351

How many cranial nerves?

Back 351

12 pairs

Front 352

Glia

Back 352

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 353

Astrocytes

Back 353

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 354

Blood-brain barrier BBB

Back 354

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 355

How many parts does the brain have

Back 355

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 356

Largest portion of the brain

Back 356

The cerebrum

Front 357

The cerebrum

Back 357

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 358

What covers the cerebrum a surfaces

Back 358

Gray matter

Front 359

Cerebral cortex

Back 359

Surface of the hemisphere covered with gray matter

Front 360

How many spinal nerves

Back 360

31 pairs

Front 361

How many further nerves are PNS divided into?

Back 361

2 voluntary and involuntary

Front 362

Involuntary and voluntary nerves

Back 362

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 363

PNS nerves two subsystems

Back 363

Somatic and autonomic

Front 364

Somatic system

Back 364

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 365

Autonomic

Back 365

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 366

Neurons

Back 366

Or parenchymaI cells, cells that carry out work of the system

Front 367

Parenchymal cells

Back 367

Or neurons, cells that carry out work of the system

Front 368

Peripheral Nervous System PNS

Back 368

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 369

Stromal cells

Back 369

Or glia, the cells that provide a supportive function

Front 370

Glia

Back 370

Or stromal, the cells that provide a supportive function

Front 371

Basic unit of the nervous sustem

Back 371

The nerve cell or neuron

Front 372

Dendrites

Back 372

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 373

Neural impulses

Back 373

Action potentials

Front 374

Axon

Back 374

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 375

Terminal fibers

Back 375

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 376

What coats outside neurons

Back 376

The axon is coated by myelin sheath,

Front 377

Myelin sheath

Back 377

Substance produced by schwann cells that coat the axons

Front 378

Synapse

Back 378

Space between the terminal fibers and dendrites of the next cell

Front 379

How many cranial nerves?

Back 379

12 pairs

Front 380

Glia

Back 380

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 381

Astrocytes

Back 381

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 382

Blood-brain barrier BBB

Back 382

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 383

How many parts does the brain have

Back 383

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 384

Largest portion of the brain

Back 384

The cerebrum

Front 385

The cerebrum

Back 385

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 386

What covers the cerebrum a surfaces

Back 386

Gray matter

Front 387

Cerebral cortex

Back 387

Surface of the hemisphere covered with gray matter

Front 388

Sulci

Back 388

Folds in the brain

Front 389

How many spinal nerves

Back 389

31 pairs

Front 390

How many further nerves are PNS divided into?

Back 390

2 voluntary and involuntary

Front 391

Involuntary and voluntary nerves

Back 391

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 392

PNS nerves two subsystems

Back 392

Somatic and autonomic

Front 393

Somatic system

Back 393

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 394

Autonomic

Back 394

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 395

Neurons

Back 395

Or parenchymaI cells, cells that carry out work of the system

Front 396

Parenchymal cells

Back 396

Or neurons, cells that carry out work of the system

Front 397

Peripheral Nervous System PNS

Back 397

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 398

Stromal cells

Back 398

Or glia, the cells that provide a supportive function

Front 399

Glia

Back 399

Or stromal, the cells that provide a supportive function

Front 400

Basic unit of the nervous sustem

Back 400

The nerve cell or neuron

Front 401

Dendrites

Back 401

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 402

Neural impulses

Back 402

Action potentials

Front 403

Axon

Back 403

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 404

Terminal fibers

Back 404

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 405

What coats outside neurons

Back 405

The axon is coated by myelin sheath,

Front 406

Myelin sheath

Back 406

Substance produced by schwann cells that coat the axons

Front 407

Synapse

Back 407

Space between the terminal fibers and dendrites of the next cell

Front 408

How many cranial nerves?

Back 408

12 pairs

Front 409

Glia

Back 409

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 410

Astrocytes

Back 410

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 411

Blood-brain barrier BBB

Back 411

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 412

How many parts does the brain have

Back 412

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 413

Largest portion of the brain

Back 413

The cerebrum

Front 414

The cerebrum

Back 414

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 415

What covers the cerebrum a surfaces

Back 415

Gray matter

Front 416

Cerebral cortex

Back 416

Surface of the hemisphere covered with gray matter

Front 417

Sulci

Back 417

Folds in the brain

Front 418

Gyri

Back 418

The ridges of the brain

Front 419

How many spinal nerves

Back 419

31 pairs

Front 420

Lobes

Back 420

Cerebrum is divided into sections,

Front 421

How many further nerves are PNS divided into?

Back 421

2 voluntary and involuntary

Front 422

Involuntary and voluntary nerves

Back 422

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 423

PNS nerves two subsystems

Back 423

Somatic and autonomic

Front 424

Somatic system

Back 424

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 425

Autonomic

Back 425

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 426

Neurons

Back 426

Or parenchymaI cells, cells that carry out work of the system

Front 427

Parenchymal cells

Back 427

Or neurons, cells that carry out work of the system

Front 428

Peripheral Nervous System PNS

Back 428

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 429

Stromal cells

Back 429

Or glia, the cells that provide a supportive function

Front 430

Glia

Back 430

Or stromal, the cells that provide a supportive function

Front 431

Basic unit of the nervous sustem

Back 431

The nerve cell or neuron

Front 432

Dendrites

Back 432

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 433

Neural impulses

Back 433

Action potentials

Front 434

Axon

Back 434

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 435

Terminal fibers

Back 435

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 436

What coats outside neurons

Back 436

The axon is coated by myelin sheath,

Front 437

Myelin sheath

Back 437

Substance produced by schwann cells that coat the axons

Front 438

Synapse

Back 438

Space between the terminal fibers and dendrites of the next cell

Front 439

How many cranial nerves?

Back 439

12 pairs

Front 440

Glia

Back 440

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 441

Astrocytes

Back 441

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 442

Blood-brain barrier BBB

Back 442

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 443

How many parts does the brain have

Back 443

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 444

Largest portion of the brain

Back 444

The cerebrum

Front 445

The cerebrum

Back 445

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 446

What covers the cerebrum a surfaces

Back 446

Gray matter

Front 447

Cerebral cortex

Back 447

Surface of the hemisphere covered with gray matter

Front 448

Sulci

Back 448

Folds in the brain

Front 449

Gyri

Back 449

The ridges of the brain

Front 450

How many spinal nerves

Back 450

31 pairs

Front 451

Lobes

Back 451

Cerebrum is divided into sections,

Front 452

Frontal lobe

Back 452

Contain the functions of speech and motor area that controls voluntary movement on the contra lateral side of the body

Front 453

How many further nerves are PNS divided into?

Back 453

2 voluntary and involuntary

Front 454

Involuntary and voluntary nerves

Back 454

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 455

PNS nerves two subsystems

Back 455

Somatic and autonomic

Front 456

Somatic system

Back 456

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 457

Autonomic

Back 457

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 458

Neurons

Back 458

Or parenchymaI cells, cells that carry out work of the system

Front 459

Parenchymal cells

Back 459

Or neurons, cells that carry out work of the system

Front 460

Peripheral Nervous System PNS

Back 460

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 461

Stromal cells

Back 461

Or glia, the cells that provide a supportive function

Front 462

Glia

Back 462

Or stromal, the cells that provide a supportive function

Front 463

Basic unit of the nervous sustem

Back 463

The nerve cell or neuron

Front 464

Dendrites

Back 464

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 465

Neural impulses

Back 465

Action potentials

Front 466

Axon

Back 466

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 467

Terminal fibers

Back 467

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 468

What coats outside neurons

Back 468

The axon is coated by myelin sheath,

Front 469

Myelin sheath

Back 469

Substance produced by schwann cells that coat the axons

Front 470

Synapse

Back 470

Space between the terminal fibers and dendrites of the next cell

Front 471

How many cranial nerves?

Back 471

12 pairs

Front 472

Glia

Back 472

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 473

Astrocytes

Back 473

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 474

Blood-brain barrier BBB

Back 474

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 475

How many parts does the brain have

Back 475

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 476

Largest portion of the brain

Back 476

The cerebrum

Front 477

The cerebrum

Back 477

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 478

What covers the cerebrum a surfaces

Back 478

Gray matter

Front 479

Cerebral cortex

Back 479

Surface of the hemisphere covered with gray matter

Front 480

Sulci

Back 480

Folds in the brain

Front 481

Gyri

Back 481

The ridges of the brain

Front 482

How many spinal nerves

Back 482

31 pairs

Front 483

Lobes

Back 483

Cerebrum is divided into sections,

Front 484

Frontal lobe

Back 484

Contain the functions of speech and motor area that controls voluntary movement on the contra lateral side of the body

Front 485

Temporal lobe

Back 485

Contains the auditory and olfactory areas

Front 486

How many further nerves are PNS divided into?

Back 486

2 voluntary and involuntary

Front 487

Involuntary and voluntary nerves

Back 487

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 488

PNS nerves two subsystems

Back 488

Somatic and autonomic

Front 489

Somatic system

Back 489

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 490

Autonomic

Back 490

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 491

Neurons

Back 491

Or parenchymaI cells, cells that carry out work of the system

Front 492

Parenchymal cells

Back 492

Or neurons, cells that carry out work of the system

Front 493

Peripheral Nervous System PNS

Back 493

Composed of the nerves that extend from the brain and spinal cord to the tissues of the body, organized into 12 pairs of cranial nerves and 31 pairs of spinal nerves

Front 494

Stromal cells

Back 494

Or glia, the cells that provide a supportive function

Front 495

Glia

Back 495

Or stromal, the cells that provide a supportive function

Front 496

Basic unit of the nervous sustem

Back 496

The nerve cell or neuron

Front 497

Dendrites

Back 497

Projection from the cell body, receive neural impulses also called action potentials from a stimulus some kind

Front 498

Neural impulses

Back 498

Action potentials

Front 499

Axon

Back 499

Slender elongated projection that carries the nervous impulse toward the next Justin

Front 500

Terminal fibers

Back 500

Result from the final branching of the axon and the site of the Avon terminals that store the chemical neurotransmitters

Front 501

What coats outside neurons

Back 501

The axon is coated by myelin sheath,

Front 502

Myelin sheath

Back 502

Substance produced by schwann cells that coat the axons

Front 503

Synapse

Back 503

Space between the terminal fibers and dendrites of the next cell

Front 504

How many cranial nerves?

Back 504

12 pairs

Front 505

Glia

Back 505

Supportive or stromal cells aka neuroglia, hold neurons godfather and also protect them

Front 506

Astrocytes

Back 506

A type of of neuroglia that connect neurons and blood vessels and form a structure called the blood-brain barrier BBB

Front 507

Blood-brain barrier BBB

Back 507

Structure which prevents or slow the passage of some drugs and disease-causing organisms to the CNS

Front 508

How many parts does the brain have

Back 508

Most complex organ of the body, the cerebrum, the cerebellum, the diencephalon and the brain

Front 509

Largest portion of the brain

Back 509

The cerebrum

Front 510

The cerebrum

Back 510

Is divided into two halves of hemispheres, responsible for thinking, reasoning and memory

Front 511

What covers the cerebrum a surfaces

Back 511

Gray matter

Front 512

Cerebral cortex

Back 512

Surface of the hemisphere covered with gray matter

Front 513

Sulci

Back 513

Folds in the brain

Front 514

Gyri

Back 514

The ridges of the brain

Front 515

How many spinal nerves

Back 515

31 pairs

Front 516

Lobes

Back 516

Cerebrum is divided into sections,

Front 517

Frontal lobe

Back 517

Contain the functions of speech and motor area that controls voluntary movement on the contra lateral side of the body

Front 518

Temporal lobe

Back 518

Contains the auditory and olfactory areas

Front 519

Parietal lobe

Back 519

Controls the sensations of touch and taste

Front 520

Occipital lobe

Back 520

Is responsible for vision

Front 521

How many further nerves are PNS divided into?

Back 521

2 voluntary and involuntary

Front 522

Involuntary and voluntary nerves

Back 522

Afferent or sensory, carrying impulses to the brain and spinal cord or efferent or motor, carrying impulses from the brain and spinal cord to either voluntary or involuntary muscles

Front 523

PNS nerves two subsystems

Back 523

Somatic and autonomic

Front 524

Somatic system

Back 524

This system is voluntary in nature, these nerves collect information from and return instructions to the skin, muscles and joints

Front 525

Autonomic

Back 525

Mostly involuntary functions are controlled by this systems as sensory information from the internal environment is sent to the CNS and in return motor impulses from the CNS are sent to involuntary muscles: the heart, glands and organs

Front 526

Neurons

Back 526

Or parenchymaI cells, cells that carry out work of the system

Front 527

Parenchymal cells

Back 527

Or neurons, cells that carry out work of the system

Front 528

Cerebellum

Back 528

Located inferior to the occipital lobe, coordinates voluntary movement but is involuntary in its function

Front 529

Cerebellum

Back 529

Located inferior to the occipital lobe, coordinates voluntary movement but is involuntary in its function

Front 530

Diencephalon

Back 530

Composed of the thalamus and the hypothalamus

Front 531

Cerebellum

Back 531

Located inferior to the occipital lobe, coordinates voluntary movement but is involuntary in its function

Front 532

Diencephalon

Back 532

Composed of the thalamus and the hypothalamus

Front 533

Thalamus

Back 533

Is repainsivke for relaying sensory information and translating it into sensations of pain, temperature and touch

Front 534

Cerebellum

Back 534

Located inferior to the occipital lobe, coordinates voluntary movement but is involuntary in its function

Front 535

Diencephalon

Back 535

Composed of the thalamus and the hypothalamus

Front 536

Thalamus

Back 536

Is repainsivke for relaying sensory information and translating it into sensations of pain, temperature and touch

Front 537

Hypothalamus

Back 537

Activated, integrates and controls the peripheral autonomic nervous system ANS along with body temperature, sleep and appetite

Front 538

Cerebellum

Back 538

Located inferior to the occipital lobe, coordinates voluntary movement but is involuntary in its function

Front 539

Diencephalon

Back 539

Composed of the thalamus and the hypothalamus

Front 540

Thalamus

Back 540

Is repainsivke for relaying sensory information and translating it into sensations of pain, temperature and touch

Front 541

Hypothalamus

Back 541

Activated, integrates and controls the peripheral autonomic nervous system ANS along with body temperature, sleep and appetite

Front 542

Brain stem

Back 542

Connects the cerebral hemispheres to the spinal cord

Front 543

Brain stem

Back 543

Connects the cerebral hemispheres to the spinal cord, composed of three main parts midbrain, pons and medulla oblongata

Front 544

Mid brain connects to

Back 544

The pons and cerebrellum with the hemispheres of the cerebrum

Front 545

Medulla oblongata

Back 545

Regulates heart rate, blood pressure, and breathing

Front 546

Spinal cord

Back 546

Extends from the medulla oblongata to the first lumbar vertebra

Front 547

Mid brain connects to

Back 547

The pons and cerebrellum with the hemispheres of the cerebrum

Front 548

Medulla oblongata

Back 548

Regulates heart rate, blood pressure, and breathing

Front 549

Spinal cord

Back 549

Extends from the medulla oblongata to the first lumbar vertebra

Front 550

Cauda equina

Back 550

Spinal cord extended past the lumbar vertebra

Front 551

Mid brain connects to

Back 551

The pons and cerebrellum with the hemispheres of the cerebrum

Front 552

Medulla oblongata

Back 552

Regulates heart rate, blood pressure, and breathing

Front 553

Spinal cord

Back 553

Extends from the medulla oblongata to the first lumbar vertebra

Front 554

Cauda equina

Back 554

Spinal cord extended past the lumbar vertebra

Front 555

Meninges

Back 555

Bony vertebrae surrounding the spinal cord and protects is

Front 556

Mid brain connects to

Back 556

The pons and cerebrellum with the hemispheres of the cerebrum

Front 557

Medulla oblongata

Back 557

Regulates heart rate, blood pressure, and breathing

Front 558

Spinal cord

Back 558

Extends from the medulla oblongata to the first lumbar vertebra

Front 559

Cauda equina

Back 559

Spinal cord extended past the lumbar vertebra

Front 560

Meninges

Back 560

Bony vertebrae surrounding the spinal cord and protects is

Front 561

Gray matter

Back 561

Cell bodies of the motor neurons

Front 562

Mid brain connects to

Back 562

The pons and cerebrellum with the hemispheres of the cerebrum

Front 563

Medulla oblongata

Back 563

Regulates heart rate, blood pressure, and breathing

Front 564

Spinal cord

Back 564

Extends from the medulla oblongata to the first lumbar vertebra

Front 565

Cauda equina

Back 565

Spinal cord extended past the lumbar vertebra

Front 566

Meninges

Back 566

Bony vertebrae surrounding the spinal cord and protects is

Front 567

Gray matter

Back 567

Cell bodies of the motor neurons

Front 568

White matter

Back 568

Myelin-covered axons or nerve fibers that extend from the nerve cell bodies

Front 569

Nerve roots

Back 569

Where the 31 pairs of spinal nerves emerge from the spinal cord

Front 570

Dura mater

Back 570

Is the tough, fibrous, outer covering of the meninges, meaning hard mother

Front 571

Dura mater

Back 571

Is the tough, fibrous, outer covering of the meninges, meaning hard mother

Front 572

Subdural space

Back 572

space between the dura matter and arachnoid membrane

Front 573

Dura mater

Back 573

Is the tough, fibrous, outer covering of the meninges, meaning hard mother

Front 574

Subdural space

Back 574

space between the dura matter and arachnoid membrane

Front 575

Arachnoid membrane

Back 575

A thin delicate membrane that takes its name from its spidery appearance

Front 576

Dura mater

Back 576

Is the tough, fibrous, outer covering of the meninges, meaning hard mother

Front 577

Subdural space

Back 577

space between the dura matter and arachnoid membrane

Front 578

Arachnoid membrane

Back 578

A thin delicate membrane that takes its name from its spidery appearance

Front 579

Subarachnoid space

Back 579

Space between the arachnoid membrane and the pia matter contains cerebrospinal fluid CSF

Front 580

Dura mater

Back 580

Is the tough, fibrous, outer covering of the meninges, meaning hard mother

Front 581

Subdural space

Back 581

space between the dura matter and arachnoid membrane

Front 582

Arachnoid membrane

Back 582

A thin delicate membrane that takes its name from its spidery appearance

Front 583

Subarachnoid space

Back 583

Space between the arachnoid membrane and the pia matter contains cerebrospinal fluid CSF

Front 584

Ventricles

Back 584

CSF is present here

Front 585

Dura mater

Back 585

Is the tough, fibrous, outer covering of the meninges, meaning hard mother

Front 586

Subdural space

Back 586

space between the dura matter and arachnoid membrane

Front 587

Arachnoid membrane

Back 587

A thin delicate membrane that takes its name from its spidery appearance

Front 588

Subarachnoid space

Back 588

Space between the arachnoid membrane and the pia matter contains cerebrospinal fluid CSF

Front 589

Ventricles

Back 589

CSF is present here

Front 590

Pia mater

Back 590

The thin vascular membrane that is the innermost of the three meninges, meaning soft mother

Front 591

Cranial nerves

Back 591

Conduct impulses between the brain and the head, neck, thoracic, and abdominal areas

Front 592

Cranial nerves

Back 592

Conduct impulses between the brain and the head, neck, thoracic, and abdominal areas

Front 593

Spinal nerves

Back 593

Closely mimic the organization of the vertebrae and provide innervation to the rest of the body

Front 594

Plexus

Back 594

Nerve fibers from several nerves form a network

Front 595

Plexus

Back 595

Nerve fibers from several nerves form a network

Front 596

Dermatomes

Back 596

Are skin surfaces areas supplied by a single afferent spinal

Front 597

Plexus

Back 597

Nerve fibers from several nerves form a network

Front 598

Dermatomes

Back 598

Are skin surfaces areas supplied by a single afferent spinal

Front 599

Autonomic nervous system ANS

Back 599

Consist of nerves that regulate involuntary

Front 600

Plexus

Back 600

Nerve fibers from several nerves form a network

Front 601

Dermatomes

Back 601

Are skin surfaces areas supplied by a single afferent spinal

Front 602

Autonomic nervous system ANS

Back 602

Consist of nerves that regulate involuntary

Front 603

Sympathetic nervous system

Back 603

Is capable of producing a fight or flight response

Front 604

Plexus

Back 604

Nerve fibers from several nerves form a network

Front 605

Dermatomes

Back 605

Are skin surfaces areas supplied by a single afferent spinal

Front 606

Autonomic nervous system ANS

Back 606

Consist of nerves that regulate involuntary

Front 607

Sympathetic nervous system

Back 607

Is capable of producing a fight or flight response

Front 608

Parasympathetic nervous system

Back 608

Tend to do the opposite of the sympathetic nervous system, slowing heart rate, lowering blood pressure, increasing digestive functions

Front 609

Plexus

Back 609

Nerve fibers from several nerves form a network

Front 610

Dermatomes

Back 610

Are skin surfaces areas supplied by a single afferent spinal

Front 611

Autonomic nervous system ANS

Back 611

Consist of nerves that regulate involuntary

Front 612

Sympathetic nervous system

Back 612

Is capable of producing a fight or flight response

Front 613

Parasympathetic nervous system

Back 613

Tend to do the opposite of the sympathetic nervous system, slowing heart rate, lowering blood pressure, increasing digestive functions