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Human Anatomy Myology > Elbow & Wrist Myology > Flashcards

Elbow & Wrist Myology Flashcards

1
Q

elbow flexor muscles

A

biceps brachii, brachialis, brachioradialis

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2
Q

brachialis origin

A

distal half of anterior surface of humerus

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3
Q

brachialis insertion

A

coronoid process and ulnar tuberosity

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4
Q

brachialis action

A

elbow flexion in pronation

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5
Q

brachialis nerve

A

musculocutaneous nerve

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6
Q

brachioradialis origin

A

lateral supracondylar ridge of humerus

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7
Q

brachioradialis insertion

A

lateral surface of distal radius

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8
Q

brachioradialis action

A

flexes elbow in neutral position

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9
Q

brachioradialis nerve

A

radial nerve

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10
Q

elbow extensor muscles

A

triceps brachii, anconeus

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11
Q

anconeus origin

A

lateral epicondyle of humerus

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12
Q

anconeus insertion

A

lateral surface of olecranon

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13
Q

anconeus action

A

assists triceps in elbow extension

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14
Q

anconeus nerve

A

radial nerve

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15
Q

common flexor origin

A

medial epicondyle

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16
Q

superficial compartment wrist flexors/pronators

A

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

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17
Q

pronator teres origin

A

medial epicondyle and coronoid process

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18
Q

pronator teres insertion

A

middle and lateral surfaces of the radius

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19
Q

pronator teres action

A

pronates forearm and flexes elbow

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20
Q

pronator teres nerve

A

median

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21
Q

flexor carpi radialis origin

A

medial epicondyle

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22
Q

flexor carpi radialis insertion

A

base of second MC

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23
Q

flexor carpi radialis action

A

flexes and radially deviates hand at wrist

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24
Q

flexor carpi radialis nerve

A

median

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25
Q

palmaris longus origin

A

medial epicondyle

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26
Q

palmaris longus insertion

A

distal half of flexor retinaculum and palmar aponeurosis

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27
Q

palmaris longus action

A

flexes hand at wrist

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28
Q

palmaris longus nerve

A

median

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29
Q

flexor carpi ulnaris origin

A

humeral head: medial epicondyle
ulnar head: olecranon and posterior border of ulna

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30
Q

flexor carpi ulnaris insertion

A

pisiform, hook of the hamate, base of 5th MC

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31
Q

flexor carpi ulnaris action

A

flexes and ulnarly deviates hand at wrist

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32
Q

flexor carpi ulnaris nerve

A

ulnar nerve

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33
Q

middle compartment wrist flexors/pronators

A

flexor digitorum superficialis

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34
Q

flexor digitorum superficialis origin

A

medial epicondyle, coronoid process, radius

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35
Q

flexor digitorum superficialis insertion

A

bodies of middle phalanges of medial 4 digits

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36
Q

flexor digitorum superficialis action

A

flexes middle phalanges at PIP joints of medial 4 digits

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37
Q

flexor digitorum superficialis nerve

A

median nerve

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38
Q

deep compartment wrist flexors/pronators

A

flexor digitorum profundus, flexor pollucis longus, pronator quadratus

39
Q

flexor digitorum profundus origin

A

proximal 3/4 of ulna

40
Q

flexor digitorum profundus insertion

A

bases of distal phalanges 2-5

41
Q

flexor digitorum profundus action

A

flexes at DIP joint, PIP joint, MCP joint, and wrist

42
Q

flexor digitorum profundus nerve

A

digits 2 & 3: anterior interosseus nerve
digits 4 & 5: ulnar

43
Q

flexor pollucis longus origin

A

anterior radius

44
Q

flexor pollucis longus insertion

A

base of distal phalanx of thumb

45
Q

flexor pollucis longus action

A

flexes phalanges of the thumb

46
Q

flexor pollucis longus nerve

A

anterior interosseus nerve

47
Q

pronator quadratus origin

A

distal 1/4 of anterior surface of ulna

48
Q

pronator quadratus insertion

A

distal 1/4 of anterior surface of radius

49
Q

pronator quadratus action

A

pronates forearm

50
Q

pronator quadratus nerve

A

anterior interosseus nerve

51
Q

common extensor origin

A

lateral epicondyle

52
Q

superficial compartment wrist extensors/supinators

A

extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris, extensor digitorum, extensor digiti minimi

53
Q

extensor carpi radialis longus origin

A

lateral supracondylar ridge

54
Q

extensor carpi radialis longus insertion

A

base of 2nd MC

55
Q

extensor carpi radialis longus action

A

extends and radially deviates the wrist

56
Q

extensor carpi radialis longus nerve

A

radial nerve

57
Q

extensor carpi radialis brevis origin

A

lateral epicondyle

58
Q

extensor carpi radialis brevis insertion

A

base of 3rd MC

59
Q

extensor carpi radialis brevis action

A

extends and radially deviates the wrist

60
Q

extensor carpi radialis brevis nerve

A

deep radial nerve

61
Q

extensor carpi ulnaris origin

A

lateral epicondyle

62
Q

extensor carpi ulnaris insertion

A

base of 5th MC

63
Q

extensor carpi ulnaris action

A

extends and ulnarly deviates the wrist

64
Q

extensor carpi ulnaris nerve

A

deep radial nerve

65
Q

extensor digitorum origin

A

lateral epicondyle

66
Q

extensor digitorum insertion

A

extensor expansions of medial 4 digits

67
Q

extensor digitorum action

A

extends medial 4 digits at MCPs and IPs via extensor mechanism, wrist extenstion

68
Q

extensor digitorum nerve

A

deep radial nerve

69
Q

extensor digiti minimi origin

A

lateral epicondyle

70
Q

extensor digiti minimi insertion

A

extensor expansion of 5th digit

71
Q

extensor digiti minimi action

A

extends 5th digit at MCP and IP joints

72
Q

extensor digiti minimi nerve

A

deep radial nerve

73
Q

deep compartment wrist extensors/supinators

A

supinator, extensor pollucis brevis, extensor pollucis longus, extensor indices, abductor pollucis longus

74
Q

supinator origin

A

lateral epicondyle and posterior ulna

75
Q

supinator insertion

A

lateral, posterior, and anterior surface of proximal 1/3 of radius

76
Q

supinator action

A

supinates forearm

77
Q

supinator nerve

A

deep radial nerve

78
Q

extensor pollucis brevis origin

A

posterior radius

79
Q

extensor pollucis brevis insertion

A

base of proximal phalanx of thumb

80
Q

extensor pollucis brevis action

A

extends proximal phalanx of thumb at CMC joint

81
Q

extensor pollucis brevis nerve

A

deep radial nerve

82
Q

extensor pollucis longus origin

A

posterior ulna

83
Q

extensor pollucis longus insertion

A

base of distal phalanx of thumb

84
Q

extensor pollucis longus action

A

extends distal phalanc of thumb at MCP and IP joints

85
Q

extensor pollucis longus nerve

A

deep radial nerve

86
Q

extensor indices origin

A

posterior ulna

87
Q

extensor indices insertion

A

extensor expansion of 2nd digit

88
Q

extensor indices action

A

extends 2nd digit at MCP and IP joints via the extensor expansion

89
Q

extensor indices nerve

A

deep radial nerve

90
Q

abductor pollucis longus origin

A

posterior ulna

91
Q

abductor pollucis longus insertion

A

base of 1st MC

92
Q

abductor pollucis longus action

A

abducts thumb and extends at CMC joint

93
Q

abductor pollucis longus nerve

A

deep radial nerve

Human Anatomy Myology (5 decks)

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