Spinal Tissue And Cord

Front 1

If you touch a hot stove with your hand, the sensory __________ in your hand send a signal of pain to the CNS through the __________ nerve fibers of the _____________ nervous system. When the information reaches the CNS and is processed, a _____________ response is sent through the ___________ nerve fibers of the PNS system to skeletal muscles that are ___________.

Back 1

receptors, afferent, peripheral, motor, efferent, effectors

Front 2

Supporting cells of the PNS (2)

Back 2

satellite cells, Schwann cells

Front 3

Supporting cells of the CNS (4)

Back 3

astrocyte, ependymal cells, microglia, oligodendrocytes

Front 4

Forms mylein sheaths (2)

Back 4

oligodendrocytes, Schwann cells

Front 5

Regulate chemical environment of neurons

Back 5

astrocytes, Schwann cells

Front 6

generates and transmits nerve impulses

Back 6

neuron

Front 7

lines cavity of brain and spinal cord; form and move CSF

Back 7

ependymal cells

Front 8

microglia

Back 8

phagocytes that destroy debris, dead tissue, and pathogens

Front 9

What kind of polar neuron has many processes associated with the cell body?

Back 9

Multipolar neuron

Front 10

What kind of polar neuron has two cell processes and is a rare sensory neuron in the eye and nose?

Back 10

Bipolar neuron

Front 11

What kind of polar neuron has one short process which extends from the cell body and divides?

Back 11

Unipolar neuron

Front 12

Functional neuron types that are structurally multipolar neurons?

Back 12

interneuron, motor neuron

Front 13

Neuron types whose cell bodies are in the spinal cord (CNS)?

Back 13

interneuron, motor neuron

Front 14

Neuron type that is structurally either a unipolar neuron or bipolar neuron whose cell body is found in the PNS?

Back 14

sensory neuron

Front 15

Functional neuron type most prevalent in the CNS.

Back 15

interneuron

Front 16

white matter

Back 16

contains myelinated fibers

Front 17

gray matter

Back 17

contains neuron cell bodies and unmyelinated fibers

Front 18

myelinated fibers

Back 18

nerve fibers that are white in color and conduct nerve impulses faster

Front 19

unmyelinated fibers

Back 19

nerve fibers that are gray in color

Front 20

nodes of Ranvier

Back 20

gaps in the myelin sheath

Front 21

middle meninx; web like

Back 21

arachnoid

Front 22

tough, outer meninx

Back 22

dura mater

Front 23

space filled with adipose tissue

Back 23

epidural

Front 24

thin meninx intimate with spinal cord

Back 24

pia mater

Front 25

contains cerebrospinal fluid

Back 25

subarachnoid

Front 26

extension of pia mater attaching to dura

Back 26

denticulate ligaments

Front 27

Matter which contains neuron cell bodies and unmyelinated processes.

Back 27

Gray matter

Front 28

shallow groove on dorsal side of spinal cord

Back 28

posterior median sulcus

Front 29

connects right and left halves of gray matter in spinal cord

Back 29

gray commissure

Front 30

sensory branch of spinal nerve entering spinal cord

Back 30

posterior dorsal root

Front 31

tapered end of spinal cord

Back 31

conus medullaris

Front 32

motor branch of spinal nerve exiting spinal cord

Back 32

ventral root

Front 33

contains sensory neuron cell bodies

Back 33

dorsal root ganglion

Front 34

collection of spinal nerves that arise from inferior end of spinal cord

Back 34

cauda equina

Front 35

matter which contains myelinated axons

Back 35

white matter

Front 36

contains somatic motor neuron cell bodies

Back 36

anterior gray horn

Front 37

space in center of spinal cord that contains cerebrospinal fluid

Back 37

cerntral canal

Front 38

wide deep groove on ventral side

Back 38

anterior median fissure

Front 39

extension of pia mater that attches spinal cord to coccyx

Back 39

filum terminale

Front 40

bulge in spinal cord at T9 - T12

Back 40

lumbar enlargement

Front 41

What is the connective tissue that covers unmyelinated or myelinated axons in nerves?

Back 41

endoneurium

Front 42

What is the connective tissue that covers fascicles in nerves?

Back 42

perineurium

Front 43

What is the connective tissue that covers nerves?

Back 43

epineurium

Front 44

The nervous system is responsible for........

Back 44

all our behaviors, memories, and movements.

Front 45

Brain, cranial nerves, spinal cord, spinal nerves, ganglia, enteric plexuses and sensory receptors

Back 45

major structures of the nervous system

Front 46

Subdivisions of the PNS

Back 46

Somatic, Autonomic, Enteric

Front 47

sensory neurons from cutaneous and special sensory receptors to the CNS
motor neurons to skeletal muscle tissue

Back 47

Somatic (voluntary) nervous system (SNS)

Front 48

sensory neurons from visceral organs to CNS motor neurons to smooth & cardiac muscle and glands

Back 48

Autonomic (involuntary) nervous systems

Front 49

sympathetic division (speeds up heart rate)
parasympathetic division (slow down heart rate)

Back 49

The divisions of the autonomic nervous system

Front 50

Microglia

Back 50

Small cells found near blood vessels. Phagocytic role – clean up dead cells derived from cells that also produce monocytes

Front 51

Oligodendroctye

Back 51

Most common type of glial cell. Form myelin sheaths around more than one axon in CNS. Analogous to Schwann cells of PNS

Front 52

Astrocytes

Back 52

Star-shaped cells. Form blood-brain barrier by covering blood capillaries. Metabolize neurotransmitters. Regulate K+ balance. Provide structural support

Front 53

Ependymal

Back 53

Specialized epithelial cell membrane that line cerebral cavities & the central canal
Produce cerebrospinal fluid (CSF)

Front 54

Myelination

Back 54

Myelin sheath - a multilayered lipid and protein covering that surrounds the axons of many neurons produced by Schwann cells (PNS) and oligodendrocytes (CNS)
the sheath electrically insulates the axon and increases the speed of nerve impulse conduction (like the coating on an electrical cord)

Front 55

resting potential

Back 55

-70mV