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A&P > Chapter 13 Spinal Cord > Flashcards

Chapter 13 Spinal Cord Flashcards

1
Q

superior end of the spinal cord is located at this bone marking

A

foramen magnum

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2
Q

inferior end of the spinal cord is located at this bone

A

L1

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3
Q

what is found in white matter in the spinal cord

A

myelinated tracts

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4
Q

neuron cell bodies, unmyelinated axons and dendrites create this color tissue in the spinal cord

A

gray matter

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5
Q

major nerve that exits the brachial plexus that extends down the middle of the forearm

A

median

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6
Q

collection of nerve roots in the vertebral canal inferior to the end of the spinal cord

A

cauda equina

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7
Q

tapered inferior end of the spinal cord

A

conus medullaris

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8
Q

wider sections of the spinal cord because of the number of neurons there that supply the arms and legs

A

cervical and lumbar enlargements

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9
Q

term for the network of nerve fibers that extend from the ventral rami of spinal nerves

A

plexus

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10
Q

major nerve that exits the cervical plexus

A

phrenic

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11
Q

major nerve that exits the brachial plexus that runs down the medial side of the forearm

A

ulnar

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12
Q

major nerve that exits the lumbar plexus

A

femoral

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13
Q

major nerve that exits the sacral plexus

A

sciatic

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14
Q

extension of the pia mater below L1

A

filum terminale

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15
Q

place where the filum terminale is anchored

A

coccyx

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16
Q

number of pairs of spinal nerves

A

31

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17
Q

most superficial meninx that surrounds the spinal cord

A

dura mater

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18
Q

the middle “tube” in the spinal cord that contains CSF

A

central canal

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19
Q

what is found in the anterior gray horn of the spinal cord

A

motor cell bodies

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20
Q

what is found in the dorsal root of the spinal cord

A

sensory axons

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21
Q

place near the spinal cord where unipolar sensory neuron cell bodies are found

A

dorsal root ganglion

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22
Q

place near the spinal cord where motor axons are found

A

ventral root

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23
Q

color of the anterior horn of the spinal cord

A

gray

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24
Q

color of the anterior columns of the spinal cord

A

white

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25
Q

are spinal nerves sensory or motor

A

both

26
Q

is the ventral root sensory or motor

A

motor

27
Q

is the dorsal root sensory or motor

A

sensory

28
Q

what is found in the columns of the spinal cords

A

tracts

29
Q

is the spinothalamic tract motor or sensory

A

sensory

30
Q

is the reticulospinal tract motor or sensory

A

motor

31
Q

the name of the major tract that carries impulses from the brain to skeletal muscle

A

lateral corticospinal tract

32
Q

name the term for an automatic predictable response to a stimulus

A

reflex

33
Q

the effector in the patellar stretch reflex

A

quadriceps femoris

34
Q

the receptor in the patellar stretch reflex

A

muscle spindle

35
Q

the receptor that sends impulses when a muscle is too contracted

A

Golgi tendon organ

36
Q

the nerve that carries both the afferent and efferent impulses for the patellar stretch reflex

A

femoral

37
Q

the number of neurons in any stretch reflex

A

two

38
Q

the part of the reflex arc that detects the stimulus

A

receptor

39
Q

the part of the reflex arc that carries the impulse to the spinal cord

A

afferent neuron

40
Q

if this word is used to describe a reflex, you will know that there is an association (integration) neuron in the reflex arc

A

polysynaptic

41
Q

another word used to describe a reflex with only two neurons

A

monosynaptic

42
Q

what happens to the effector in the Golgi tendon reflex

A

relaxation

43
Q

the part of the reflex arc that produces a response

A

effector

44
Q

name the receptor in the withdrawal reflex

A

nociceptor

45
Q

name the effectors in the withdrawal reflex

A

flexor muscles

46
Q

an example of a monosynaptic reflex

A

stretch reflex

47
Q

the receptor in the pupillary reflex

A

photoreceptor

48
Q

the effector in the pupillary reflex

A

constrictor pupillae

49
Q

the nerve that carries efferent fibers for the pupillary reflex

A

oculomotor

50
Q

the nerve that carries afferent fibers for the pupillary reflex

A

optic

51
Q

name the effector in an autonomic reflex

A

smooth, cardiac, glands

52
Q

a negative Babinski sign has which meaning

A

normal

53
Q

the term for a segment of skin supplied by a specific spinal nerve

A

dermatome

54
Q

what a muscle spindle can detect

A

stretch

55
Q

major nerve that exits the brachial plexus and travels along the lateral side of the forearm

A

radial

56
Q

major nerve that exits out of the brachial plexus and supplies the biceps brachii muscle

A

musculocutaneous

57
Q

major nerve that exits through the lumbar plexus and supplies the quadriceps femoris muscle

A

femoral

58
Q

the nerve that innervates the hamstrings originates from this nerve plexus

A

sacral

59
Q

the nerve that innervates the diaphragm originates from this plexus

A

cervical

60
Q

CSF is found between these meningeal layers around the spinal cord

A

pia mater & arachnoid

61
Q

what is found in the central canal of the spinal cord

A

CSF

A&P (16 decks)

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