Chapter 11 The Nervous System

Front 1

Brain & Spinal Cord/Integration and command center

Back 1

Central nervous system

Front 2

nerves outside brain and spinal cord/sensory receptors, cranial nerves, spinal nerves, peripheral nerves

Back 2

peripheral nervous system

Front 3

toward the brain (sensory)

Back 3

afferent

Front 4

3 functions of nervous system

Back 4

sensory input
integration
motor output

Front 5

away from the brain (motor)

Back 5

efferent

Front 6

carries nerve impulses from sensory organs to CNS from skin, Skeletal muscles, and visceral organs

Back 6

sensory division

Front 7

injury, soreness, and knowing the location and limit of body parts, sensing stomach aches, needing to relieve oneself

Back 7

need for sensory nerves in visceral organs

Front 8

carries nerve impulses from CNS to effector organs: somatic nervous system autonomic nervous system

Back 8

motor division

Front 9

Voluntary, controls Skeletal muscles

Back 9

somatic nervous system

Front 10

involuntary, regulates smooth and cardiac and glands, sympathetic and parasympathetic

Back 10

autonomic nervous system

Front 11

activates involuntary muscles and glands

Back 11

sympathetic

Front 12

calms involuntary muscles and glands

Back 12

parasympathetic

Front 13

Word for body

Back 13

"soma"

Front 14

principle cells of the nervous system:

Back 14

neurons
neuroglia

Front 15

large and complex cells transmit nerve impulses, long lived and amitotic

Back 15

neurons

Front 16

support, segregate, and insulate neurons. promote health of nervous tissue. guide young neurons to proper connections. can Regenerate

Back 16

neuroglia functions

Front 17

CNS: astrocytes, microglia, ependymal cells, oligodendrocytes
PNS: schwann and satellite cells

Back 17

neuronglia types

Front 18

word for neurons that do not divide

Back 18

amitotic

Front 19

length of time neurons can survive without oxygen (highly metabolic)

Back 19

5-7 minutes

Front 20

has nucleus and usual organelles active in synthesis of neurotransmitters, focal point of outgrowth process

Back 20

neuron cell body

Front 21

Where most neuron cell bodies are located

Back 21

The CNS

Front 22

Where most neuron processes are located

Back 22

The PNS

Front 23

numerous, short, branched processes. receptive regions of the neuron convey incoming messages toward cell body via graded potential

Back 23

dendrites

Front 24

nerve impulses sent from dendrites

Back 24

graded potential

Front 25

singular long processes. Secrete neurotransmitters from axon terminals. generates and transmit action potential. long axon from cell body

Back 25

axons

Front 26

Which of the following allows us to consciously control our Skeletal muscles?

Back 26

The somatic nervous system

Front 27

What part of the nervous system performs information processing and integration?

Back 27

CNS

Front 28

Which of the following types of neurons carries impulses away from the CNS?

Back 28

motor

Front 29

Which of the following types of glial cells monitor the health of neurons, and can transform into a special type of macrophage to protect endangered neurons?

Back 29

microglia

Front 30

Which of the following types of glial cells produce the myelin sheaths that insulate the neural fibers in the CNS?

Back 30

oligodendrocytes

Front 31

Which of the following PNS neuroglia help to form myelin sheaths around larger nerve fibers in the PNS?

Back 31

schwann cells

Front 32

Which of the following are bundles of neurofilaments important in maintaining the shape and integrity of neurons?

Back 32

neurofibrils

Front 33

Which of the following is true of axons?

Back 33

They have a single axon

Front 34

Which of the following is the conducting region of the neuron?

Back 34

axon

Front 35

Which of the following are gaps on the neuron sheath?

Back 35

nodes of ranvier

Front 36

Which criteria is used to functionally classify neurons?

Back 36

The direction in which the nerve impulse travels relative to the central nervous system

Front 37

Which of the following is not a functional classification of neurons?

Back 37

extraneurons

Front 38

Which of the following is not true of association neurons?

Back 38

Most association neurons are confined within the PNS

Front 39

Which of the following does not factor into the rate of impulse propagation?

Back 39

The number of axon collaterals extending from a truncated axon