anat 2 test nervous system Flashcards

(81 cards)

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
what does the central connection portion of a reflex consist of
interneuron in brain or spinal cord
26
what does the output portion of a reflex consist of
a lower peripheral motor neuron
27
what is an example of a myotactic reflex arc
if gravity stretches the extensor muscle, this stimulates its contraction via the reflex arc
28
what direction are spinal roots
unidirectional
29
what does a dorsal root consist of
afferent fibers bot sensory and proprioceptive
30
what does a ventral root consist of
efferent fibers [motor neurons]
31
what direction are spinal nerves
bidirectional
32
what does the dorsal branch of the spinal nerve do
carries nerve fibers that innervate structures dorsal to transverse processes [epaxial]
33
what does the ventral branch of the spinal nerve do
innervate structures ventral to transverse processes [hypaxial]
34
what is the brachial plexus formed by
ventral branches of spinal nerves C6, C7, C8, T1, T2, and +/- C5
35
what does the nerve supply to the thoracic limb consist of
motor to skeletal muscles via efferent neurons cutaneous sensory from skin and proprioception from thoracic limb via afferent neurons
36
what is the phrenic nerve
the motor nerve of the diaphragm thats related to the brachial plexus
37
what is required for a nerve to have an autonomous zone and an overlap zone
cutaneous innervation
38
what does the brachiocephalic nerve innervate
the cleidobrachialis muscle
39
what does the long thoracic nerve innervate
serratus ventralis muscle
40
what does the thoracodorsal nerve innervate
latissimus dorsi
41
what does the lateral thoracic nerve innnervate
cutaneous trunci
42
what does the caudal pectoral nerve innervate
deep pectoral muscle
43
what does the cranial pectoral nerve innervate
the superficial pectoral muscle
44
what does the suprascapular nerve provide motor innervation to
supraspinatus m infraspinatus m
45
what does the subscapular nerve provide motor innervation to
subscapularis m
46
what does the musculocutaneous nerve provide motor innervation to
biceps brachii brachialis coracobrachialis
47
what does the musculocutaneous nerve provide sensory innervation to
medial aspect of antebrachium palmar aspect of manus
48
what does the axillary nerve provide motor innervation to
teres major teres minor deltoideus caudal part of subscapularis
49
what does the axillary nerve provide sensory innervation to
craniolateral shoulder area cranial aspect of antebrachium
50
what does the radial nerve provide motor innervation to
triceps brachii, tensor fasciae antebrachii, anconeus, brachioradialis, extensor carpi radialis, common digital extensor, lateral digital extensor, extensor carpi ulnaris, supinator, abductor pollicis longus
51
what are the two branches of the radial nerve
deep and superficial
52
what does the median nerve provide motor innervation to
pronator teres flexor carpi radialis superficial digital flexor deep digital flexor pronator quadratus
53
what does the median nerve provide sensory innervation to
palmar aspect of manus
54
what does the ulnar nerve provide motor innervation to
flexor carpi ulnaris deep digital flexor interossei
55
what does the ulnar nerve provide sensory innervation to
caudal aspect of antebrachium palmar aspect of manus
56
what nerves are apart of the lumbosacral plexus and supply the abdominal wall
costoabdominal nerve cranial iliohypogastric nerve caudal iliohypogastric nerve ilioinguinal nerve lateral cutaneous femoral nerve
57
what branches of the lumbosacral plexus form the genitofemoral nerve
L3 and L4
58
what does the genitofemoral nerve provide motor innervation to
cremaster muscle
59
what does the genitofemoral nerve provide sensory innervation to
skin in inguinal region proximal medial thigh
60
what branches of the lumbosacral plexus form the obturator nerve
L4 L5 L6
61
what does the obturator nerve provide motor innervation to
external obturator m pectineus m gacilis adductors
62
what branches of the lumbosacral plexus form the femoral nerve
L4 L5 L6
63
what does the femoral nerve provide motor innervation to
iliopsoas quadratus femoris sartorius
64
what does the saphenous nerve provide sensory innervation to
cutaneous innervation of skin, medial femoral, genual, tibial , and pes regions
65
when does the femoral nerve turn into the saphenous nerve
femoral triangle
66
what branches of the lumbosacral plexus form the lumbosacral trunk
L6 L7 S1 S2
67
where can you find the lumbosacral trunk
near the ischiatic tuberosity
68
what doe the lumbosacral trunk give rise to
caudal gluteal n cranial gluteal n sciatic n
69
what does the caudal gluteal nerve give motor innervation to
superficial gluteal muscle
70
what does the cranial gluteal nerve provide motor innervation to
middle gluteal piriformis deep gluteal tensor fascia latae
71
what does the sciatic nerve provide motor innervation to
internal obturator m gemelli m quadratus femoris m biceps femoris semimembranosus semitendinosus
72
what nerves arise from sciatic nerve to serve as the sensory portion of the sciatic nerve
lateral and caudal cutaneous sural nn
73
where do the lateral and caudal cutaneous sural nn provide sensory innervation to
lateral and caudal surfaces of crus
74
what two branches does the sciatic nerve divide into proximal to the stifle
tibial n common peroneal [fibular] n
75
what does the common peroneal [fibular] n provide motor and sensory innervation to
flexors of tarsal joint and extensors of digits
76
what does the tibial nerve provide motor and sensory innervation to
extensors of tarsal and flexors of digits
77
what 2 branches does the common peroneal [fibular] nerve divide into in the crus
deep and superficial peroneal [fibular] nerves
78
what does the deep peroneal nerve innervate
cranial tibial long digital extensor peroneus [fibularis] longus
79
what does the superficial peroneal nerve innervate
lateral digital extensor m peroneus [fibularis] brevis
80
what does the tibial nerve provide motor innervation to
gastrocnemius superficial digital flexor deep digital flexor popliteus
81
what does the tibial nerve divide into to supply sensory innervation to what
medial and lateral plantar nn plantar surface of the pes