lab 21: spinal cord, nerves, + reflexes

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121 Terms

1
<p>1</p>

1

nerve

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2
<p>2</p>

2

blood vessels

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3
<p>3</p>

3

fascicle

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4
<p>4</p>

4

epineurium

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5
<p>5</p>

5

perineurium

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6
<p>6</p>

6

endoneurium

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7
<p>1</p>

1

cervical enlargement

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8
<p>2</p>

2

lumbar enlargement

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9
<p>3</p>

3

cauda equina

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10
<p>4</p>

4

conus medullaris

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11
<p>5</p>

5

filum terminale

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12
<p>identify this nerve</p>

identify this nerve

median nerve

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13
<p>B</p>

B

obturator nerve

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14
<p>A</p>

A

femoral nerve

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15
<p>C</p>

C

sciatic nerve

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16
<p>1</p>

1

posterior root ganglion

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<p>2</p>

2

posterior rootlets

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<p>3</p>

3

posterior median sulcus

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<p>4</p>

4

posterior horn

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20
<p>5</p>

5

anterior horn

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<p>6</p>

6

anterior median fissure

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22
<p>K</p>

K

myelin sheath

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23
<p>J</p>

J

perineurium

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24
<p>I</p>

I

blood vessels

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25
<p>H</p>

H

nerve fascicles

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26
<p>G</p>

G

perineurium

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27
<p>F</p>

F

epineurium

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28
<p>E</p>

E

axon and surrounding myelin

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29
<p>D</p>

D

fascicle

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30
<p>C</p>

C

epineurium

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31
<p>B</p>

B

endoneurium

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32
<p>A</p>

A

axon

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33

fanning of the toes up is the

babinski sign

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34

babinksi sign (plantar reflex) is the abnormal response that helps reveal..

damage to the motor tracts of the spinal cord.

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35

reflex

an involuntary motor response

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36

reaction

a planned motor response

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37

reflex arc

nerve pathway for a reflex

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38

stimulus

activates a sensory receptor

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39

sensory receptor

the first step in a reflex arc

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40

sensory neuron

also called an afferent neuron

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41

integrating center

found only in gray matter of CNS

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42

interneuron

neuron found only in polysynaptic reflexes

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43

motor neuron

also called an efferent neuron

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44

effector organ

carries out a motor response

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monosynaptic reflex

has only one synapse

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polysynaptic reflex

always has one or more interneurons

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somatic reflex

effector organ is skeletal muscle

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autonomic reflex

effector organ may be a gland

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cranial reflex

integrating center is the brain

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50

spinal reflex

integrating center is the spinal cord

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patellar reflex

also called the knee jerk reflex

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52

plantar reflex

can reveal babinski’s sign

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53
<p>A</p>

A

c1 spinal nerve

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54
<p>B</p>

B

c8 spinal nerve

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55
<p>C</p>

C

phrenic nerve

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<p>D</p>

D

median nerve

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57
<p>E</p>

E

ulnar nerve

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58
<p>F</p>

F

radial nerve

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59
<p>G</p>

G

musculocutaneous nerve

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60
<p>H</p>

H

axillary nerve

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61
<p>A</p>

A

femoral nerve

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62
<p>B</p>

B

L1

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<p>C</p>

C

L3

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<p>D</p>

D

obturator nerve

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<p>E</p>

E

sciatic nerve

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<p>F</p>

F

common fibular nerve

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67
<p>G</p>

G

tibial nerve

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<p>A</p>

A

cervical plexus

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<p>B</p>

B

brachial plexus

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<p>C</p>

C

lumbar plexus

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<p>D</p>

D

sacral plaexus

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<p>A</p>

A

cervical enlargement

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<p>B</p>

B

spinal cord proper

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<p>C</p>

C

filum terminale

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75
<p>D</p>

D

cauda equina

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<p>E</p>

E

conus medullaris

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<p>F</p>

F

lumbar enlargement

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<p>A</p>

A

posterior rootlets

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79
<p>B</p>

B

posterior root

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80
<p>C</p>

C

pia mater

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81
<p>D</p>

D

arachnoid mater

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82
<p>E</p>

E

dura mater

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83
<p>F</p>

F

anterior ramus

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84
<p>G</p>

G

posterior ramus

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85
<p>H</p>

H

spinal nerve

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86
<p>I</p>

I

anterior root

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87
<p>J</p>

J

anterior rootlets

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88
<p>A</p>

A

spinous process of vertebra

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89
<p>B</p>

B

epidural space

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90
<p>C</p>

C

spinal cord

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91
<p>D</p>

D

body or vertebra

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92
<p>E</p>

E

pia mater

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93
<p>F</p>

F

spinal nerve

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94
<p>G</p>

G

subarachnoid space

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95
<p>H</p>

H

arachnoid mater

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96
<p>I</p>

I

dura mater

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97
<p>A</p>

A

posterior (dorsal) funiculus

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98
<p>B</p>

B

central canal

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99
<p>C</p>

C

anterior (ventral) funiculus

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100
<p>D</p>

D

anterior median fissure

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