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NPTE > Major Nerves > Flashcards

Major Nerves Flashcards

1
Q

Spinal Cord Segment of Musculocutaneous Nerve

A

C5,C6,C7

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2
Q

Muscles innervated by musculocutaneous nerve

A

coracobrachialis, biceps brachii, brachialis

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3
Q

Sensory distribution of musculocutaneous nerve

A

anterolateral forearm

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4
Q

Motor features of paralysis of musculocutaneous nerve

A

loss of forearm flexion when supinated, weakened supination

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5
Q

spinal cord segment of axillary nerve

A

C5,C6

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6
Q

muscles innervated by axillary nerve

A

deltoid, teres minor

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7
Q

sensory distribution of axillary nerve

A

lateral arm over lower portion of deltoid

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8
Q

motor features of paralysis for axillary nerve

A

loss of shoulder abduction, weakened external rotaiton

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9
Q

spinal cord segment of radial nerve

A

C5-C8, T1

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10
Q

muscles innervated by radial nerve

A 
triceps brachii
anconeus
brachioradialis
supinator
wrist extensors
finger extensors
thumb extensors
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11
Q

Motor features of paralysis for radial nerve

A

elbow extension
wrist extension
finger extension
thumb extension

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12
Q

sensory distribution of radial nerve

A

posterior arm, posterior forearm, radial side of posterior hand

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13
Q

spinal cord segments for median nerve

A

C5-C8, T1

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14
Q

muscle innervation for median nerve

A

pronators
wrist flexors
finger flexors on radial side
most thumb muscles

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15
Q

sensory distribution for median nerve

A

palmar aspects of thumb, seconds, third, and fourth (radial side) fingers

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16
Q

motor features of paralysis for median nerve

A

loss of forearm pronation

thumb opposition, flexion, and abduction

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17
Q

spinal cord segment of ulnar nerve

A

C7,C8,T1

18
Q

muscles innervated by ulnar nerve

A

flexor carpi ulnaris
flexor digitorum profundus (medial half)
interossei
fourth and fifth lumbricals

19
Q

sensory distribution of ulnar nerve

A 
fourth finger (medial portion)
fifth finger
20
Q

motor features of paralysis for ulnar nerve

A 
loss of wrist ulnar deviation
weakened wrist and finger flexion
weakened fourth and fifth finger flexion
loss of thumb ADDuction
loss of most intrinsics (claw hand)
21
Q

spinal cord segments of sciatic nerve

A

L4-S3

22
Q

muscle innervations of sciatic nerve

A

hamstrings and adductor magnus

23
Q

sensory distribution of sciatic nerve

A

through its terminal branches of the tibial, superficial fibular, and deep fibular nerves

24
Q

motor features of paralysis

A

loss of knee flexion, weak hip adduction, and loss of all muscle function distal to the knee

25
Q

spinal cord segment of femoral nerve

A

L2-L4

26
Q

muscle innervations of femoral nerve

A

sartorius, quadriceps femoris, iliacus, pectineus

27
Q

sensory distribution of femoral nerve

A

middle anterior thigh, medial thigh proximal to knee

28
Q

motor features of paralysis for femoral nerve

A

loss of hip flexion, and knee extension

29
Q

spinal cord segment of tibial nerve

A

L4-S3

30
Q

muscle innervations of tibial nerve

A

gastrocnemius, soleus, plantaris, popliteus, tibialis posterior

31
Q

sensory distribution of tibial nerve

A

posterior/lateral calf, ankle and heel

32
Q

motor features of paralysis for tibial nerve

A

loss of plantarflexion, and knee flexion

33
Q

spinal cord segment of superficial fibular nerve

A

L5-S2

34
Q

muscle innervation of superficial fibular nerve

A

fibularis longus and brevis

35
Q

sensory distribution of superficial fibular nerve

A

anterior/lateral leg and ankle and most of the dorsum of the foot

36
Q

motor features of paralysis for superficial fibular nerve

A

loss of eversion

37
Q

spinal cord segment for deep fibular nerve

A

L4-L5

38
Q

muscle innervations for deep fibular nerve

A 
tibialis anterior
extensor hallucis longus
extensor digitorum longus
fibularis tertius
extensor digitorum brevis
extensor hallucis brevis
39
Q

sensory distribution of deep fibular nerve

A

web space between the first and second toes on the dorsum of the foot

40
Q

motor features of paralysis of deep fibular nerve

A

loss of dorsiflexion (drop foot)

weakness in the dorsal foot intrinsics

NPTE (2 decks)

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