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MSK > Antebrachium > Flashcards

Antebrachium Flashcards

1
Q

proximal attachment supinator

A

lateral humeral epicondyle and supinator crest of ulna

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2
Q

distal attachment supinator

A

proximal 1/3 of lateral radius

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3
Q

inn. of supinator

A

deep branch of radial n (C7-C8)

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4
Q

action of supinator

A

supinate forearm

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5
Q

proximal attachment extensor indicis

A

distal ulna and interosseous membrane

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6
Q

distal attachment extensor indicis

A

extensor expansion of digit 2

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7
Q

inn. of extensor indicis, abductor policis longus, extensor policis brevis , extensor policis longus

A

posterior interosseus n (C7-C8)

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8
Q

action of extensor indicis

A

extend digit 2 (independently), help extend hand (at wrist)

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9
Q

proximal attachment of abductor policis longus

A

proximal ulna, radius, and interrosseous membrane

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10
Q

distal attachment abductor policis longus

A

1st metacarpal

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11
Q

action of abductor policis longus

A

abduct and extend CM joint of digit 1, abduct wrist

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12
Q

proximal attachment of extensor policis brevis

A

mid-posterior radial surface, interosseous membrane

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13
Q

distal attachment extensor policis brevis

A

1st proximal phalanx

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14
Q

action of extensor policis brevis

A

extend CM and MCP joints of digit 1, abduct wrist

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15
Q

proximal attachment extensor policis longus

A

mid-posterior ulnar surface, interosseous membrane

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16
Q

distal attachment of extensor policis longus

A

1st distal phalanx

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17
Q

action of extensor policis longus

A

extend CM, MCP, and IP joints of digit 1, abduct wrist

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18
Q

proximal attachment brachoradialis

A

proximal 2/3 of supracondylar ridge of humerus

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19
Q

distal attachment brachoradialis

A

distal radius just proximal to the styloid process

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20
Q

inn. of brachoradialis and extensor carpi radial is longus

A

radial n.

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21
Q

action of brachoradialis

A

weak forearm flexion, max flexion when forearm is midpronated

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22
Q

proximal attachment extensor carpi radialis longus

A

lateral supracondylar ridge of humerus

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23
Q

distal attachment extensor carpi radialis longus

A

base of 2nd metacarpal

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24
Q

action of extensor carpi radialis longus and brevis

A

extend and abduct hand (at wrist)

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25
Q

proximal attachment extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi

A

lateral humeral epicondyle

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26
Q

distal attachment extensor carpi radialis brevis

A

base of 3rd metacarpal

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27
Q

inn. of extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris

A

deep branch of radial n (C7-C8)

28
Q

action of extensor carpi radialis brevis

A
29
Q

distal attachment of extensor digitorum

A

extensor expansion of digits 2-5

30
Q

action of extensor digitorum

A

extend digits 2-5 at MCP, secondarily at IP joints

31
Q

distal attachment of extensor digiti minimi

A

extensor expansion of digit 5

32
Q

action of extensor digiti minimi

A

extend digit 5 at MCP, secondarily at IP joint

33
Q

proximal attachment extensor carpi ulnaris

A

lateral humeral epicondyle, posterior ulnar border

34
Q

distal attachment extensor carpi ulnaris

A

dorsal base of 5th metacarpal

35
Q

action of extensor carpi ulnaris

A

extend and adduct wrist

36
Q

proximal attachment pronation teres

A

ulnar: coronoid process
humeral: medial humeral epicondyle

37
Q

proximal attachment flexor carpi radialis, palmaris longus

A

medial humeral epicondyle

38
Q

proximal attachment flexor carpi ulnaris

A

humeral: medial humeral epicondyle
ulnar: olecranon and posterior ulnar border

39
Q

proximal attachment flexor digitorum superficialis

A

humeroulnar: medial humeral epicondyle and coronoid process
radial: superior 1/2 of radius

40
Q

proximal attachment flexor digitorum profundus

A

proximal anteromedial ulna and interosseous membrane

41
Q

proximal attachment flexor policis longus

A

anterior radius and interosseous membrane

42
Q

proximal attachment pronator quadratus

A

distal 1/4 of anterior ulnar surface

43
Q

distal attachment pronator teres

A

middle of lateral radius

44
Q

distal attachment flexor carpi radialis

A

2nd metacarpal base

45
Q

distal attachment palmaris longus

A

flexor retinaculum and palmar aponeurosis

46
Q

distal attachment flexor carpi ulnaris

A

medial carpals and 5th metacarpal

47
Q

distal attachment flexor digitorum superficialis

A

both sides of 2nd-5th middle phalanges

48
Q

distal attachment flexor digitorum profundus

A

base of 2nd -5th distal phalanges

49
Q

distal attachment flexor policis longus

A

base of 1st distal phalanx

50
Q

distal attachment pronator quadratus

A

distal radial shaft

51
Q

inn. pronator teres, flexor carpi radialis, palmaris longus

A

median n. (C6-T1)

52
Q

inn. flexor carpi ulnaris

A

ulnar n.

53
Q

inn. flexor digitorum superficialis

A

median n.

54
Q

inn. flexor digitorum profundus

A

medial: ulnar n.
lateral: anterior interosseous n.

55
Q

inn. flexor policis longus, pronator quadratus

A

anterior interosseous n.

56
Q

action of pronator teres

A

pronate and flex forearm

57
Q

action of flexor carpi radialis

A

flex and abduct hand (at wrist)

58
Q

action of palmaris longus

A

flex hand (at wrist) and tense palmar aponeurosis

59
Q

action of flexor carpi ulnaris

A

flex and adduct hand (at wrist)

60
Q

action of flexor digitorum superficialis

A

flex PIPs and MCP joints of digits 2-5

61
Q

action of flexor digitorum profundus

A

flex MCPs, PIPs, and DIPs of 2nd-5th distal phalanges

62
Q

action of flexor policis longus

A

flex digit 1 CM, MCP, and IP joints

63
Q

action of pronator quadratus

A

pronate forearm

64
Q

superficial muscles of anterior forearm

A

brachoradialis, pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris

65
Q

intermediate muscles of anterior forearm

A

flexor digitorum superficialis

66
Q

deep muscles of the anterior forearm

A

flexor digitorum profundus, flexor policis longus, supinator, pronator quadratus

MSK (11 decks)

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