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Anatomy 1 > anat 2 test nervous system > Flashcards

anat 2 test nervous system Flashcards

1
Q

what are the 2 main divisions of the nervous system

A

somatic and autonomic

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2
Q

in the CNS, -somas consist of

A

grey matter and nucleus cortex

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3
Q

in the CNS, -axons consist of

A

white matter
faniculo
fasciculus
lemniscus
peduncle
fibers

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4
Q

in PSNS, -somas consist of

A

ganglion

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5
Q

in PSNS, -axons consist of

A

nerve, root, trunk, branch

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6
Q

in embryonic development, what did the ectoderm develop into

A

neural tissue
epidermis

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7
Q

in embryonic development, what did the mesoderm develop into

A

somites [which differentiate into skeletal and muscle tissues]
notochord
blood vessels
dermis
connective tissue

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8
Q

in embryonic development, what did the endoderm develop into

A

epithelium of digestive and respiratory systems
digestive organs [liver and pancreas]

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9
Q

what is the pyramidal decussation

A

cranial end between spinal cord and brainstem

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10
Q

what is intumescentiae

A

the segments that gives origin to the nerves that supply the thoracic and pelvic limbs

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11
Q

what is the cervical inumescence

A

C6-T2, innervates thoracic limbs [don’t forget C8]

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12
Q

what is the lumbar intumescence

A

L4-S3, innervated pelvic limbs

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13
Q

what is a funiculi composed of

A

descending and ascending axon fibers

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14
Q

What is the segment of the cervical functional region of the spinal cord

A

C1-C5

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15
Q

What is the segment of the cervical intumescence functional region of the spinal cord

A

C6-T2 [plus C8]

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16
Q

What is the segment for the thoracolumbar functional region of the spinal cord

A

T3-L3

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17
Q

What is the segment for the lumbar intumescence functional region of the spinal cord

A

L4-S3

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18
Q

What is the segment for the caudal functional region of the spinal cord

A

Cd 1-5

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19
Q

in what direction does sensory or afferent information run

A

from body towards CNS

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20
Q

in what direction does motor or efferent information run

A

towards muscle or glands

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21
Q

what is UMN

A

central motor neuron

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22
Q

what is LMN

A

peripheral motor neuron

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23
Q

what are the 3 parts of a reflex

A

sensory input
central connection
output

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24
Q

what does the sensory input portion of a reflex consist of

A

afferent neuron [peripheral receptor]

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25
Q

what does the central connection portion of a reflex consist of

A

interneuron in brain or spinal cord

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26
Q

what does the output portion of a reflex consist of

A

a lower peripheral motor neuron

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27
Q

what is an example of a myotactic reflex arc

A

if gravity stretches the extensor muscle, this stimulates its contraction via the reflex arc

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28
Q

what direction are spinal roots

A

unidirectional

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29
Q

what does a dorsal root consist of

A

afferent fibers bot sensory and proprioceptive

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30
Q

what does a ventral root consist of

A

efferent fibers [motor neurons]

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31
Q

what direction are spinal nerves

A

bidirectional

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32
Q

what does the dorsal branch of the spinal nerve do

A

carries nerve fibers that innervate structures dorsal to transverse processes [epaxial]

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33
Q

what does the ventral branch of the spinal nerve do

A

innervate structures ventral to transverse processes [hypaxial]

34
Q

what is the brachial plexus formed by

A

ventral branches of spinal nerves C6, C7, C8, T1, T2, and +/- C5

35
Q

what does the nerve supply to the thoracic limb consist of

A

motor to skeletal muscles via efferent neurons
cutaneous sensory from skin and proprioception from thoracic limb via afferent neurons

36
Q

what is the phrenic nerve

A

the motor nerve of the diaphragm thats related to the brachial plexus

37
Q

what is required for a nerve to have an autonomous zone and an overlap zone

A

cutaneous innervation

38
Q

what does the brachiocephalic nerve innervate

A

the cleidobrachialis muscle

39
Q

what does the long thoracic nerve innervate

A

serratus ventralis muscle

40
Q

what does the thoracodorsal nerve innervate

A

latissimus dorsi

41
Q

what does the lateral thoracic nerve innnervate

A

cutaneous trunci

42
Q

what does the caudal pectoral nerve innervate

A

deep pectoral muscle

43
Q

what does the cranial pectoral nerve innervate

A

the superficial pectoral muscle

44
Q

what does the suprascapular nerve provide motor innervation to

A

supraspinatus m
infraspinatus m

45
Q

what does the subscapular nerve provide motor innervation to

A

subscapularis m

46
Q

what does the musculocutaneous nerve provide motor innervation to

A

biceps brachii
brachialis
coracobrachialis

47
Q

what does the musculocutaneous nerve provide sensory innervation to

A

medial aspect of antebrachium
palmar aspect of manus

48
Q

what does the axillary nerve provide motor innervation to

A

teres major
teres minor
deltoideus
caudal part of subscapularis

49
Q

what does the axillary nerve provide sensory innervation to

A

craniolateral shoulder area
cranial aspect of antebrachium

50
Q

what does the radial nerve provide motor innervation to

A

triceps brachii, tensor fasciae antebrachii, anconeus, brachioradialis, extensor carpi radialis, common digital extensor, lateral digital extensor, extensor carpi ulnaris, supinator, abductor pollicis longus

51
Q

what are the two branches of the radial nerve

A

deep and superficial

52
Q

what does the median nerve provide motor innervation to

A

pronator teres
flexor carpi radialis
superficial digital flexor
deep digital flexor
pronator quadratus

53
Q

what does the median nerve provide sensory innervation to

A

palmar aspect of manus

54
Q

what does the ulnar nerve provide motor innervation to

A

flexor carpi ulnaris
deep digital flexor
interossei

55
Q

what does the ulnar nerve provide sensory innervation to

A

caudal aspect of antebrachium
palmar aspect of manus

56
Q

what nerves are apart of the lumbosacral plexus and supply the abdominal wall

A

costoabdominal nerve
cranial iliohypogastric nerve
caudal iliohypogastric nerve
ilioinguinal nerve
lateral cutaneous femoral nerve

57
Q

what branches of the lumbosacral plexus form the genitofemoral nerve

A

L3 and L4

58
Q

what does the genitofemoral nerve provide motor innervation to

A

cremaster muscle

59
Q

what does the genitofemoral nerve provide sensory innervation to

A

skin in inguinal region
proximal medial thigh

60
Q

what branches of the lumbosacral plexus form the obturator nerve

A

L4 L5 L6

61
Q

what does the obturator nerve provide motor innervation to

A

external obturator m
pectineus m
gacilis
adductors

62
Q

what branches of the lumbosacral plexus form the femoral nerve

A

L4 L5 L6

63
Q

what does the femoral nerve provide motor innervation to

A

iliopsoas
quadratus femoris
sartorius

64
Q

what does the saphenous nerve provide sensory innervation to

A

cutaneous innervation of skin, medial femoral, genual, tibial , and pes regions

65
Q

when does the femoral nerve turn into the saphenous nerve

A

femoral triangle

66
Q

what branches of the lumbosacral plexus form the lumbosacral trunk

A

L6 L7 S1 S2

67
Q

where can you find the lumbosacral trunk

A

near the ischiatic tuberosity

68
Q

what doe the lumbosacral trunk give rise to

A

caudal gluteal n
cranial gluteal n
sciatic n

69
Q

what does the caudal gluteal nerve give motor innervation to

A

superficial gluteal muscle

70
Q

what does the cranial gluteal nerve provide motor innervation to

A

middle gluteal
piriformis
deep gluteal
tensor fascia latae

71
Q

what does the sciatic nerve provide motor innervation to

A

internal obturator m
gemelli m
quadratus femoris m
biceps femoris
semimembranosus
semitendinosus

72
Q

what nerves arise from sciatic nerve to serve as the sensory portion of the sciatic nerve

A

lateral and caudal cutaneous sural nn

73
Q

where do the lateral and caudal cutaneous sural nn provide sensory innervation to

A

lateral and caudal surfaces of crus

74
Q

what two branches does the sciatic nerve divide into proximal to the stifle

A

tibial n
common peroneal [fibular] n

75
Q

what does the common peroneal [fibular] n provide motor and sensory innervation to

A

flexors of tarsal joint and extensors of digits

76
Q

what does the tibial nerve provide motor and sensory innervation to

A

extensors of tarsal and flexors of digits

77
Q

what 2 branches does the common peroneal [fibular] nerve divide into in the crus

A

deep and superficial peroneal [fibular] nerves

78
Q

what does the deep peroneal nerve innervate

A

cranial tibial
long digital extensor
peroneus [fibularis] longus

79
Q

what does the superficial peroneal nerve innervate

A

lateral digital extensor m
peroneus [fibularis] brevis

80
Q

what does the tibial nerve provide motor innervation to

A

gastrocnemius
superficial digital flexor
deep digital flexor
popliteus

81
Q

what does the tibial nerve divide into to supply sensory innervation to what

A

medial and lateral plantar nn
plantar surface of the pes

Anatomy 1 (7 decks)

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