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MSK anatomy > Upper limb 3 > Flashcards

Upper limb 3 Flashcards

1
Q

Muscles of front of forearm actions

A

flexors of wrist and digits

pronators of forearm

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2
Q

superficial group of front of forearm - 4 muscles

A

pronator teres
flexor capri radialis
palmaris longus
flexor carpi ulnaris

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3
Q

common flexor tendon

A

medial epicondyle of humerus

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4
Q

pronator teres action

A

flexes and pronates forearm

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5
Q

innervation of pronator teres

A

median nerve

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6
Q

median nerve roots

A

C6-7

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7
Q

adduction of wrist and abduction of wrist - superficial forearm muscles

A

add - flexor carpi ulnaris

abd - flexor carpi radialis

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8
Q

innervation of superficial muscles of forearm

A

3 - median nerve

flexor carpi ulnaris - ulnar nerve

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9
Q

brachioradialis compartment

A

extensor compartment

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10
Q

Brachioradialis joint

A

elbow

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11
Q

main action of brachioradialis

A

flexion of elbow in mid pronated position

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12
Q

innervation of brachioradialis

A

radial nerve

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13
Q

intermediate group of anterior forearm

A

flexor digitorum superficialis

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14
Q

FDS tendons

A

middle 4 fingers

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15
Q

FDS action

A

flex wrist, metacarpophalangeal and interphalangeal joints

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16
Q

FDS - distal IP joint?

A

NO

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17
Q

3 muscles of deep group of anterior forearm

A

FDP
Flexor pollicus longus
pronator quadratus

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18
Q

FDP action

A

flexes wrist and distal IP joint of digit 2-5

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19
Q

FDP dual nerve supply

A 
medial part (digit 4+5) - ulnar nerve
lateral part (digit 2+3) - median nerve
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20
Q

Nerve innervating flexor pollicus longus

A

medial nerve

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21
Q

Main nerve of anterior compartment of forearm

A

median nerve

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22
Q

Brachial artery and median nerve in cubital fossa

A

nerve medial to brachial artery

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23
Q

which muscle does median nerve not innervate in forearm?

A

flexor carpi ulnaris and medial half of FDP

24
Q

Does median nerve enter hand by passing below or above flexor retinaculum?

A

below

25
Q

How does ulnar nerve enter forearm?

A

passing between heads of flexor carpi ulnaris

26
Q

ulnar nerve and ulnar artery position

A

nerve medial to artery

27
Q

2 terminal branches of brachial artery?

A

radial and ulnar

28
Q

What is the carpal tunnel?

A

passageway deep to flexor retinaculum between scaphoid and trapezius on lateral side and psiform and hamate on medial side

29
Q

Contents of carpal tunnel

A

4 tendons of FDS
4 tendons of FDP
median nerve
1 tendon of FPL

30
Q

carpal tunnel syndrome structure

A

median nerve

31
Q

Muscle contributing to palmar aponeurosis

A

palmaris longus

32
Q

Thenar muscles main responsibility

A

opposition of thumb

33
Q

3 thenar muscle

A

abductor pollicus brevis
flexor pollicus brevis
opponens pollicus

34
Q

Innervation of thenar muscles

A

median nerve

35
Q

Hypothenar muscles

A

abductor digiti minimi
flexor digiti minimi
opponens digiti minimi

36
Q

Innervation of hypothenar muscles

A

ulnar nerve

37
Q

2 heads of adductor pollicus

A

oblique and transverse

38
Q

Adductor pollicus innervation

A

ulnar nerve

39
Q

Which flexor tendon do lumbricals originate?

A

flexor digitorum profundus

40
Q

Lumbricals action

A

flex metacarpophalangeal joints

extend IP joint 2-5 digit

41
Q

Where are interossei present?

A

between metacarpal bones

42
Q

How many interossei?

A

4 dorsal and 3 palmar

43
Q

DAB and PAD

A

dorsal interossei - abduction

palmar interossei - adduction

44
Q

Innervation of interossei

A

ulnar nerve

45
Q

superficial and deep palmar arch main contributor

A

superficial - ulnar artery

deep - radial artery

46
Q

Does radial nerve supply any hand muscles?

A

no - skin on back of hand

47
Q

Ulnar nerve - what it does NOT innervate in the hand

A

thenar muscles
1st and 2nd lumbrical
median nerve

48
Q

metacarpal bones

A 
s - scaphoid 
L - lunate
t - triquetrum 
p - pisiform
t - trapezium 
t - trapezioid 
c - capitate 
h - hamate
49
Q

wrist joint type

A

synovial condyloid/ellipsoid

50
Q

Articular part of wrist

A

radius

lunate, scaphoid, triquetrum

51
Q

movements of wrist

A

flexion and extension
circumduction
abduction and adduction

52
Q

anterior compartment of forearm on wrist

A

flexion

53
Q

extensor and flexor carpi ulnaris on wrist

A

adduction and flexion

54
Q

abduction of wrist

A

flexor carpi radialis

55
Q

What is the action of most of posterior compartment muscles of forearm on wrist joint?

A

extension

MSK anatomy (8 decks)

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