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Anatomy > MOINA of Forearm and Hand > Flashcards

MOINA of Forearm and Hand Flashcards

1
Q

origin of pronator teres (humeral head)

A

medial epicondyle of humerus

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2
Q

origin of pronator teres (ulnar head)

A

medial border of coronoid process of ulna

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3
Q

insertion of pronator teres (humeral and ulnar head)

A

lateral aspect of shaft of humerus

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4
Q

nerve of pronator teres (humeral and ulnar head)

A

median nerve

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5
Q

action of pronator teres (humeral and ulnar head)

A

pronation and flexion of forearm

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6
Q

origin of flexor carpi radialis

A

medial epicondyle of humerus

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7
Q

insertion of flexor carpi radialis

A

bases of second and third metacarpal bones

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8
Q

nerve of flexor carpi radialis

A

median nerve

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9
Q

action of flexor carpi radialis

A

flexes and abducts hand at wrist

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10
Q

origin of palmaris longus

A

medial epicondyle of humerus

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11
Q

insertion of palmaris longus

A

flexor retinaculum and palmar aponeurosis

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12
Q

nerve of palmaris longus

A

median nerve

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13
Q

action of palmaris longus

A

flexes hand

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14
Q

origin of flexor carpi ulnaris (humeral head)

A

medial epicondyle of humerus

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15
Q

origin of flexor carpi ulnaris (ulnar head)

A

medial aspect of olecranon process and posterior border of ulna

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16
Q

insertion of flexor carpi ulnaris (humeral and ulnar head)

A

pisiform bone, hook of the hamate, base at fifth metacarpal bone

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17
Q

nerve of flexor carpi ulnaris (humeral and ulnar head)

A

ulnar nerve

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18
Q

action of flexor carpi ulnaris (humeral and ulnar head)

A

flexes and adducts hand at wrist joint

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19
Q

origin of flexor digitorum superficialis (humeroulnar head)

A

medial epicondyle of humerus; medial border of coronoid process of ulna

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20
Q

origin of flexor digitorum superficialis (radial head)

A

oblique line on anterior surface of shaft of radius

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21
Q

insertion of flexor digitorum superficialis (humeroulnar and radial head)

A

middle phalanx of medial four fingers

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22
Q

nerve of flexor digitorum superficialis (humeroulnar and radial head)

A

median nerve

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23
Q

action of flexor digitorum superficialis (humeroulnar and radial head)

A

flexes middle phalanx of fingers and assists in flexing proximal phalanx and hand

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24
Q

origin of flexor pollicis longus

A

anterior surface of shaft of ulna

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25
Q

insertion of flexor pollicis longus

A

distal phalanx of thumb

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26
Q

nerve of flexor pollicis longus

A

anterior interosseous branch of median nerve

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27
Q

action of flexor pollicis longus

A

flexes distal phalanx of thumb

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28
Q

origin of flexor digitorum profundus

A

anteromedial surface of shaft of ulna

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29
Q

insertion of flexor digitorum profundus

A

distal phalanges of medial four fingers

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30
Q

nerve of flexor digitorum profundus

A

ulnar (medial half) and median (lateral half)

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31
Q

action of flexor digitorum profundus

A

flexes distal phalanx of fingers; then assists in flexion of middle and proximal phalanges and wrist

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32
Q

origin of pronator quadratus

A

anterior surface of shaft of ulna

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33
Q

insertion of pronator quadratus

A

anterior surface of shaft of humerus

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34
Q

nerve of pronator quadratus

A

anterior interosseous branch of median nerve

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35
Q

action of pronator quadratus

A

pronates forearm

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36
Q

origin of brachioradialis

A

lateral supracondylar ridge of humerus

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37
Q

insertion of brachioradialis

A

base of styloid process of radius

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38
Q

nerve of brachioradialis

A

radial nerve

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39
Q

action of brachioradialis

A

flexes forearm atridge of humerus elbow joint; rotates forearm to the midprone position

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40
Q

origin of extensor carpi radialis longus

A

lateral supracondylar ridge of humerus

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41
Q

insertion of extensor carpi radialis longus

A

posterior surface of base of second metacarpal bone

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42
Q

nerve of extensor carpi radialis longus

A

radial nerve

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43
Q

action of extensor carpi radialis longus

A

extends and abducts hand at wrist joint

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44
Q

origin of extensor carpi radialis brevis

A

lateral epicondyle of humerus

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45
Q

insertion of extensor carpi radialis brevis

A

posterior surface of base of third metacarpal bone

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46
Q

nerve of extensor carpi radialis brevis

A

deep branch of radial nerve

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47
Q

action of extensor carpi radialis brevis

A

extends and abducts hand at wrist joint

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48
Q

origin of extensor digitorum

A

lateral epicondyle of humerus

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49
Q

insertion of extensor digitorum

A

middle and distal phalanges of medial four finger

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50
Q

nerve of extensor digitorum

A

deep branch of radial nerve

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51
Q

action of extensor digitorum

A

extends fingers and hand

52
Q

origin of extensor digiti minimi

A

lateral epicondyle of humerus

53
Q

insertion of extensor digiti minimi

A

extensor expansion of little finger

54
Q

nerve of extensor digiti minimi

A

deep branch of radial nerve

55
Q

action of extensor digiti minimi

A

extends metacarpal phalangeal joint of little finger

56
Q

origin of extensor carpi ulnaris

A

lateral epicondyle of humerus

57
Q

insertion of extensor carpi ulnaris

A

base of fifth metacarpal bone

58
Q

nerve of extensor carpi ulnaris

A

deep branch of radial nerve

59
Q

action of extensor carpi ulnaris

A

extends and adducts hand at wrist joint

60
Q

origin of anconeus

A

lateral epicondyle of humerus

61
Q

insertion of anconeus

A

lateral surface of olecranon process of ulna

62
Q

nerve of anconeus

A

radial nerve

63
Q

action of anconeus

A

extends elbow joint

64
Q

origin of supinator

A

lateral epicondyle of humerus, anular ligament of proximal radioulnar joint, and ulna

65
Q

insertion of supinator

A

neck and shaft of radius

66
Q

nerve of supinator

A

deep branch of radial nerve

67
Q

action of supinator

A

supination of forearm

68
Q

origin of abductor pollicis longus

A

posterior surface of shafts of radius and ulna

69
Q

insertion of abductor pollicis longus

A

base of first metacarpal bone

70
Q

nerve of abductor pollicis longus

A

deep branch of radial nerve

71
Q

action of abductor pollicis longus

A

abducts and extends thumb

72
Q

origin of extensor pollicis brevis

A

posterior surface of shaft of radius

73
Q

insertion of extensor pollicis brevis

A

base of proximal phalanx of thumb

74
Q

nerve of extensor pollicis brevis

A

deep branch of radial nerve

75
Q

action of extensor pollicis brevis

A

extends metacarpophalangeal joints of thumb

76
Q

origin of extensor of pollicis longus

A

posterior surface of shaft of ulna

77
Q

insertion of extensor pollicis longus

A

base of distal phalanx of thumb

78
Q

nerve of extensor pollicis longus

A

deep branch of radial nerve

79
Q

action of extensor pollicis longus

A

extends distal phalanx of thumb

80
Q

origin of extensor indicis

A

posterior surface of shaft of ulna

81
Q

insertion of extensor indicis

A

extensor expansion of index finger

82
Q

nerve of extensor indicis

A

deep branch of radial nerve

83
Q

action of extensor indicis

A

extends metacarpophalangeal joint of index finger

84
Q

origin of palmaris brevis

A

flexor retinaculum, palmar aponeurosis

85
Q

insertion of palmaris brevis

A

skin of palm

86
Q

nerve of palmaris brevis

A

superficial branch of ulnar nerve

87
Q

action of palmaris brevis

A

corrugates skin to improve grip of palm

88
Q

origin of lumbricals (4)

A

tendons of flexor digitorum profundus

89
Q

insertion of lumbricals (4)

A

extensor expansion of medial four fingers

90
Q

action of lumbricals (4)

A

flex metacarpophalangeal joints and extend interphalangeal joints of fingers except thumb

91
Q

origin of interossei (8) [Palmar (4)]

A

first arises from base of first metacarpal; remaining three from anterior surface of shafts of second, fourth, and fifth metacarpals

92
Q

insertion of interossei (8) [Palmar (4)]

A

proximal phalanges of thumb and index, ring, and little fingers and dorsal extensor expansion of each finger (Fig. 9-69)

93
Q

nerve of interossei (8) [Palmar (4)]

A

deep branch of ulnar nerve

94
Q

action of interossei (8) [Palmar (4)]

A

palmar interossei adduct fingers toward center of third finger

95
Q

origin of interossei (8) [Dorsal (4)]

A

contiguous sides of shafts of metacarpal bones

96
Q

insertion of interossei (8) [Dorsal (4)]

A

proximal phalanges of index, middle, and ring fingers and dorsal extensor expansion (Fig. 9- 69)

97
Q

nerve of interossei (8) [Dorsal (4)]

A

deep branch of ulnar nerve

98
Q

action of interossei (8) [Dorsal (4)]

A

Dorsal interossei abductshafts of metacarpal fingers from center of third finger; both palmar and dorsal flex metacarpophalangeal joints and extend interphalangeal joints

99
Q

origin of abductor pollicis brevis

A

scaphoid, trapezium, flexor retinaculum

100
Q

insertion of abductor pollicis brevis

A

base of proximal phalanx of thumb

101
Q

nerve of abductor pollicis brevis

A

median nerve

102
Q

action of abductor pollicis brevis

A

abduction of thumb

103
Q

origin of flexor pollicis brevis

A

flexor retinaculum

104
Q

insertion of flexor pollicis brevis

A

base of proximal phalanx of thumb

105
Q

nerve of flexor pollicis brevis

A

median nerve

106
Q

action of flexor pollicis brevis

A

flexes metacarpophalangeal joint of thumb

107
Q

origin of opponens pollicis

A

flexor retinaculum

108
Q

insertion of opponens pollicis

A

shaft of metacarpal bone of thumb

109
Q

nerve of opponens pollicis

A

median nerve

110
Q

action of opponens pollicis

A

pulls thumb medially and forward across palm

111
Q

origin of adductor pollicis

A

oblique head; second and third metacarpal bones; transverse head; third metacarpal bone

112
Q

insertion of adductor pollicis

A

base of proximal phalanx of thumb

113
Q

nerve of adductor pollicis

A

deep branch of ulnar nerve

114
Q

action of adductor pollicis

A

adduction of thumb

115
Q

origin of abductor digiti minimi

A

pisiform bone

116
Q

insertion of abductor digiti minimi

A

base of proximal phalanx of little finger

117
Q

nerve of abductor digiti minimi

A

deep branch of ulnar nerve

118
Q

action of abductor digiti minimi

A

abducts little finger

119
Q

origin of flexor digiti minimi

A

flexor retinaculum

120
Q

insertion of flexor digiti minimi

A

base of proximal phalanx of little finger

121
Q

nerve of flexor digiti minimi

A

deep branch of ulnar nerve

122
Q

action of flexor digiti minimi

A

flexes little finger

123
Q

origin of opponens digiti minimi

A

flexor retinaculum

124
Q

insertion of opponens digiti minimi

A

medial border fifth metacarpal bone

125
Q

nerve of opponens digiti minimi

A

deep branch of ulnar nerve

126
Q

action of opponens digiti minimi

A

pulls fifth metacarpal forward as in cupping the palm

Anatomy (7 decks)

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