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MB3 Neurology > Peripheral nerve anatomy > Flashcards

Peripheral nerve anatomy Flashcards

1
Q

what does C2 supply

A

back of scalp and laryngeal prominence

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2
Q

what does C3 supply

A

back of neck and jugular notch

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3
Q

what does C4 supply

A

shoulder tip/clavicle

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4
Q

what does C5 supply

A

badge patch

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5
Q

what does C6 supply

A

thumb

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6
Q

what does C7 supply

A

middle finger

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7
Q

what does C8 supply

A

little finger

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8
Q

what does T1 supply

A

medial forearm

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9
Q

what does T2 supply

A

medial arm and sternal angle

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10
Q

what does T4 supply

A

nipple

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11
Q

what does T8 supply

A

xiphoid process

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12
Q

what does T10 supply

A

umbilicus

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13
Q

what does T12 supply

A

pubic symphysis

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14
Q

what does L1 supply

A

groin

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15
Q

what does L2 supply

A

anterior thigh

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16
Q

what does L3 supply

A

knee

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17
Q

what does L4 supply

A

medial malleolus

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18
Q

what does L5 supply

A

dorsum of foot

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19
Q

what does S1 supply

A

heel of foot

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20
Q

what does S2 supply

A

posterior knee

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21
Q

what does S3 supply

A

buttock

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22
Q

what does S4 supply

A

perineum

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23
Q

what does S5 supply

A

perianal skin

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24
Q

sensory supply to neck

A 
posterior - post rami C2-8
anterolateral - lesser occipital C2
greater auricular C2,3
Transverse cervical C2,3
Supraclavicular C3,4
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25
Q

peripheral cutaneous innervation to the trunk

A

posterior - post rami
upper anterolateral - intercostal nerves
lower anterolateral - subcostal T12
lower is iliohypogastric and ilioinguinal - divided ant ramus of L1

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26
Q

Spinal roots associated with supraclavicular nerves

A

C3/4

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27
Q

Spinal roots associated with axillary nerves

A

C5/6

28
Q

Spinal roots associated with cutaneous branch of muculocutaneous

A

C5/6/7

29
Q

Spinal roots associated with radial nerve

A

C5/6/7/8/T1

30
Q

Spinal roots associated with ulnar nerve

A

C7/8/T1

31
Q

Spinal roots associated with median nerve

A

C5/6/7/8/T1

32
Q

Spinal roots associated with ilioinguinal nerve

A

L1

33
Q

Spinal roots associated with genitofemoral nerve

A

L1/2

34
Q

Spinal roots associated with lateral cutaneous nerve of thigh

A

L2/3

35
Q

Spinal roots associated with posterior cutaneous nerve of thigh

A

S1/2/3

36
Q

Spinal roots associated with femoral nerve

A

L2/3/4

37
Q

Spinal roots associated with obturator nerve

A

L2/3/4

38
Q

Spinal roots associated with saphenous nerve

A

L3/4

39
Q

Spinal roots associated with sural nerve

A

S1/2

40
Q

Spinal roots associated with superficial fibular nerve

A

L4/5/S1

41
Q

Spinal roots associated with deep fibular nerve

A

L5

42
Q

Spinal roots associated with tibial nerve

A

L4/5 S1/2/3

43
Q

reflex testing of the ankle tests which spinal level

A

S1

44
Q

reflex testing of the knee tests which spinal level

A

L4

45
Q

reflex testing of spininator/brachioradialis tests which spinal level

A

C6

46
Q

reflex testing of biceps tests which spinal level

A

C5 and partly C6

47
Q

reflex testing of triceps tests which spinal level

A

C7

48
Q

describe the mechanism of the patellar reflex

A 
quads fibres/patellar ligament stretch 
AP inititaiton in femoral nerve
conducted to dorsal corn of L4
axons pass to anterior horn to synapse on LMN to reach quads NMJ
muscle contracts
49
Q

myotomes of the shoulder

A

Abduction C5

adduction C7

50
Q

myotomes of the elbow

A

flexion C5,6

extension C7

51
Q

myotomes of the finger joints

A

flexion C8
extension C7
abduction T1
adduction T1

52
Q

myotomes of the wrist

A

flexion C6, C7

extension C6, C7

53
Q

myotomes of the hip

A

flexion L2,3

extension L5,S1

54
Q

myotomes of the knee

A

flexion L5,S1

extension L3,4

55
Q

myotomes of the ankle

A

dorsiflexionL4,5
plantarflexion S1,2
inversion L4
eversion L5,S1

56
Q

motor innervation given by axillary nerve

A

deltoid

teres minor

57
Q

motor innervation given by musculocutaneous nerve

A

biceps brachii, coracobrachialis

brachialis

58
Q

motor innervation given by radial nerve

A 
triceps
brachioradialis 
supinator
all carpus extensors, digits 
abductor pollicis longus
59
Q

motor innervation given by ulnar nerve

A

carpi ulnaris, medial half of FPL, adductor pollicis, hypothenar, lumbricals 3,4 and all interossei

60
Q

motor innervation given by median nerve

A

pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, lateral half of flexor digitorum profundus, FLP, thenars and lumbricals 1,2

61
Q

motor innervation given by femoral nerve

A

quads femoris
sartorius
pectineus

62
Q

motor innervation given by obturator nerve

A

medial compartment of thigh, adductors and gracilis

63
Q

motor innervation given by common fib division sciatic

A

biceps femoris short head

64
Q

motor innervation given by superficial division fibular

A

fib longus and brevis

65
Q

motor innervation given by deep division fibular

A

tib anterior, EDL, EHL, fib tertius
EDB
EHB

66
Q

motor innervation given by tibial division sciatic

A

semimembranosus, semiteendinosus, LH biceps femoris
gastrocnemius, soleus, plantatus, popliteus, tib posterior
intrinsic muscles foot and digit flexors

MB3 Neurology (19 decks)

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