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MS 100 > Upper Muscles > Flashcards

Upper Muscles Flashcards

1
Q

Pronator teres origin

A

Humeral head: Medial epicondyle of the humerus (above CFO)
Ulnar head: coronoid process of the ulna (med surface)

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2
Q

Pronator teres insertion

A

Midlateral surface of shaft radius

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3
Q

Pronator teres nerve

A

Median nerve

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4
Q

Pronator teres action

A

Pronates forearm and assists elbow flexion

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5
Q

Pronator teres action

A

Pronates forearm and assists elbow flexion

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6
Q

Flexor carpi radialis (FCR) origin

A

Medial epicondyle of humerus via the common flexor tendon

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7
Q

Flexor carpi radialis (FCR) insertion

A

Base of 2nd and 3rd metacarpal (palmar surface)

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8
Q

Flexor carpi radialis (FCR) nerve

A

Median nerve

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9
Q

Flexor carpi radialis (FCR) action

A

Flexes and radially deviates (abducts) the wrist

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10
Q

Palmaris longus (PL) origin

A

Medial epicondyle of humerus via the common flexor tendon

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11
Q

Palmaris longus (PL) insertion

A

Palmar carpal ligament and palmar aponeurosis (flexor retinaculum)

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12
Q

Palmaris longus (PL) nerve

A

Median nerve

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13
Q

Palmaris longus (PL) action

A

Flexes wrist and tightens palmar aponeurosis

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14
Q

Flexor carpi ulnaris (FCU) origin

A

Humeral head: medial epicondyle via the common flexor tendon
Ulnar head: olecranon and posterior border of ulna (superior 2/3)

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15
Q

Flexor carpi ulnaris (FCU) insertion

A

Pisiform, hook of hamate and base of 5th metacarpal

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16
Q

Flexor carpi ulnaris (FCU) nerve

A

Ulnar nerve

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17
Q

Flexor carpi ulnaris (FCU) action

A

Flexes and ulnarly deviates (adducts) the wrist

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18
Q

Flexor digitorum superficialis (FDS) origin

A

Humeroulnar head: medial epicondyle of humerus and coronoid process of all ulna (medial side)
Radial head: oblique line of radius (anterior surface)

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19
Q

Flexor digitorum superficialis (FDS) insertion

A

Shaft of middle phalanges of the medial four digits (digits 2-5)

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20
Q

Flexor digitorum superficialis (FDS) nerve

A

Median nerve

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21
Q

Flexor digitorum superficialis (FDS) action

A

Flexes MCP and PIP joints of medial 4 digits, and assists wrist flexion

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22
Q

Flexor digitorum profundus (FDP) origin

A

Proximal 2/3 of anterior surface of all the and interosseous membrane

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23
Q

Flexor digitorum profundus (FDP) insertion

A

Bases of distal phalanges of the medial four digits (digits 2 to 5)

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24
Q

Flexor digitorum profundus (FDP) nerve

A

Median and ulnar nerves (median nerve for lateral part of muscle, ulnar nerve for medial part of muscle)

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25
Q

Flexor digitorum profundus (FDP) action

A

Primary flexes DIP and assist flexions of PIP, MCP joints of the medial four digits and assist wrist flexion

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26
Q

Flexor pollicis longus (FPL) origin

A

Anterior surface of radius (middle 1/2), interosseus membrane

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27
Q

Flexor pollicis longus (FPL) insertion

A

Base of distal phalanx of first digit (thumb)

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28
Q

Flexor pollicis longus (FPL) nerve

A

Median nerve. Anterior interosseus branch

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29
Q

Flexor pollicis longus (FPL) action

A

Flexes IP and MCP joints of the first digit (thumb)

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30
Q

Pronator quadratus (PQ) origin

A

Distal 1/4 of the anterior surface of ulna

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31
Q

Pronator quadratus (PQ) insertion

A

Distal 1/4 of the anterior surface of radius (slightly distal to origin)

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32
Q

Pronator quadratus (PQ) nerve

A

Median nerve. Anterior interosseus branch

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33
Q

Pronator quadratus (PQ) action

A

Pronates forearm

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34
Q

Brachioradialis origin

A

Lateral supracondylar ridge of the humerus (and lateral intermuscular septum)

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35
Q

Brachioradialis insertion

A

Base of styloid process of the radius

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36
Q

Brachioradialis nerve

A

Radial nerve

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37
Q

Brachioradialis action

A

Flexes forearm at elbow joint and rotates forearm to the midprone position

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38
Q

Extensor carpi radialis longus (ECRL) origin

A

Distal 1/3 of the lateral supracondylar ridge of humerus

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39
Q

Extensor carpi radialis longus (ECRL) insertion

A

Base of 2nd metacarpal (dorsal surface)

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40
Q

Extensor carpi radialis longus (ECRL) nerve

A

Radial nerve

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41
Q

Extensor carpi radialis longus (ECRL) action

A

Extends and radially deviates (abducts) the wrist

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42
Q

Extensor carpi radialis brevis (ECRB) origin

A

Lateral epicondyle of humerus via common extensor tendon

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43
Q

Extensor carpi radialis longus (ECRL) insertion

A

Base of 2nd metacarpal (dorsal surface)

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44
Q

Extensor carpi radialis longus (ECRL) nerve

A

Radial nerve

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45
Q

Extensor carpi radialis longus (ECRL) action

A

Extends and radially deviates (abducts) the wrist

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46
Q

Extensor digitorum (ED) origin

A

Lateral epicondyle of humerus via common extensor tendon

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47
Q

Extensor digitorum (ED) insertion

A

Middle and distal phalanges of the medial four digits

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48
Q

Extensor digitorum (ED) nerve

A

Deep radial nerve

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49
Q

Extensor digitorum (ED) action

A

Extends medial four digits at MCP and IP joints and assists wrist extension

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50
Q

Extensor digitorum (ED) action

A

Extends medial four digits at MCP and IP joints and assists wrist extension

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51
Q

Extensor digit minimi (EDM) origin

A

Lateral epicondyle of humerus via common extensor tendon

52
Q

Extensor digit minimi (EDM) insertion

A

Tendon of extensor digitorum on fifth digit (extensor expansion or hood)

53
Q

Extensor digit minimi (EDM) nerve

A

Deep radial nerve

54
Q

Extensor digit minimi (EDM) action

A

Extends 5th digit at MCP and IP joints

55
Q

Extensor carpi ulnaris (ECU) origin

A

Lateral epicondyle of humerus via common extensor tendon and posterior border of ulna

56
Q

Extensor carpi ulnaris (ECU) insertion

A

Base of 5th metacarpal (ulnar surface)

57
Q

Extensor carpi ulnaris (ECU) nerve

A

Deep radial nerve

58
Q

Extensor carpi ulnaris (ECU) action

A

Extends and ulnarly deviates (adducts) the wrist

59
Q

Abductor pollicis brevis origin

A

Flexor retinaculum, scaphoid and tubercle of the trapezium

60
Q

Abductor pollicis brevis insertion

A

Base of proximal phalanx of first digit (lateral/radial aspect)

61
Q

Abductor pollicis brevis nerve

A

Median nerve

62
Q

Abductor pollicis brevis action

A

Abducts first digit at CMC joint

63
Q

Opponens pollicis origin

A

Flexor retinaculum and trapezium

64
Q

Opponens pollicis insertion

A

Lateral shaft of first metacarpal (radial side)

65
Q

Opponens pollicis nerve

A

Median nerve

66
Q

Opponens pollicis action

A

Opposition of the first digit at the CMC joint

67
Q

Flexor pollicis brevis origin

A

Flexor retinaculum and trapezium

68
Q

Flexor pollicis brevis insertion

A

Base of proximal phalanx of first digit (lateral/radial aspect)

69
Q

Flexor pollicis brevis nerve

A

Median nerve

70
Q

Flexor pollicis brevis nerve

A

Median nerve

71
Q

Flexor pollicis brevis action

A

Flexes first digit at MCP and CMC joints

72
Q

Adductor pollicis origin

A

Oblique head: Capitate and bases of metacarpals 2 and 3

Transverse head: 3rd metacarpal -anterior surface

73
Q

Adductor pollicis insertion

A

Medial side of the proximal phalanx of the first digit

74
Q

Adductor pollicis nerve

A

Deep branch of ulnar nerve

75
Q

Adductor pollicis action

A

Adducts first digit and assists with flexion at MCP and CMC joint

76
Q

Palmaris brevis origin

A

Flexor retinaculum and palmar aponeurosis

77
Q

Palmaris brevis insertion

A

Skin on ulnar border of palm of hand

78
Q

Palmaris brevis nerve

A

Superficial branch of ulnar nerve

79
Q

Palmaris brevis action

A

Draws skin toward middle of palm

80
Q

Abductor digiti minimi origin

A

Pisiform

81
Q

Abductor digiti minimi insertion

A

Base of proximal phalanx of 5th digit

82
Q

Abductor digiti minimi nerve

A

Deep branch of ulnar nerve

83
Q

Abductor digiti minimi action

A

Abducts 5th digit at MCP joint

84
Q

Flexor digiti minimi brevis origin

A

Flexor retinaculum and hook of hamate

85
Q

Flexor digiti minimi brevis insertion

A

Base of proximal phalanx of 5th digit

86
Q

Flexor digiti minimi brevis nerve

A

Deep branch of ulnar nerve

87
Q

Flexor digiti minimi brevis action

A

Flexes 5th digit at the MCP joint

88
Q

Opponens digiti minimi origin

A

Flexor retinaculum and hook of hamate

89
Q

Opponens digiti minimi insertion

A

Medial boarder of shaft of 5th metacarpal

90
Q

Opponens digiti minimi nerve

A

Deep branch of ulnar nerve

91
Q

Opponens digiti minimi action

A

Opposition of 5th digit of CMC joint

92
Q

Lumbricales origin

A

Tendons of flexor digitorum profundus

(Off lateral aspect of 2nd-5th tendons and off medial aspect of 3rd and 4th tendons also)

93
Q

Lumbricales insertion

A

Extensor expansions (hoods) of digits 2-5

94
Q

Lumbricales nerve

A

Median nerve for 1 and 2 mm and ulnar for 3 and 4 mm

95
Q

Lumbricales action

A

Flexes at MCP joints and extends at IP joints

96
Q

Lumbricales action

A

Flexes at MCP joints and extends at IP joints

97
Q

Dorsal interosseii origin

A

Adjacent sides of the shaft of the metacarpals (2 heads)

98
Q

Dorsal interosseii insertion

A

Extensor expansions and bases of proximal phalanges of digits 2, 3, 4

99
Q

Dorsal interosseii nerve

A

Deep branch of ulnar nerve

100
Q

Dorsal interosseii action

A

Abduct digits, flexes at MCP joints and extends at IP joints

101
Q

Palmar interosseii origin

A

Palmar medial surface of 2nd metacarpal and palmar lateral surface of 4th and 5th metacarpal (1 head)

102
Q

Palmar interosseii insertion

A

Extensor expansions and bases of proximal phalanges of digits 2, 4, and 5

103
Q

Palmar interosseii nerve

A

Deep branch of ulnar nerve

104
Q

Palmar interosseii action

A

Adduct digit and flexes MCP joints and extends at IP joints

105
Q

Supinator origin

A

Lateral epicondyle of humerus, radial collateral and annular ligaments, and the supinator crest of the ulna

106
Q

Supinator insertion

A

Superior 1/3 of the lateral and anterior surface of the radius

107
Q

Supinator nerve

A

Deep radial nerve

108
Q

Supinator action

A

Supinates forearm and may assist in elbow flexion

109
Q

Abductor pollicis longus origin

A

Posterior surface of middle of radius and ulna and interosseous membrane

110
Q

Abductor pollicis longus insertion

A

Base of 1st metacarpal (lateral/radial side)

111
Q

Abductor pollicis longus nerve

A

Deep radial nerve

112
Q

Abductor pollicis longus action

A

Abduct and extends first digit at carpometacarpal joint and abduct wrist

113
Q

Extensor pollicis longus origin

A

Middle 1/3 of the posterior surface of the ulna and interosseous membrane

114
Q

Extensor pollicis longus insertion

A

Base of distal phalanx of the first digit

115
Q

Extensor pollicis longus nerve

A

Deep radial nerve

116
Q

Extensor pollicis longus action

A

Extend IP joint of first digit and assist extension at the MCP joint

117
Q

Extensor pollicis brevis origin

A

Posterior surface of the middle of the radius and interosseous membrane

118
Q

Extensor pollicis brevis insertion

A

Base of proximal phalanx of first digit

119
Q

Extensor pollicis brevis nerve

A

Deep radial nerve

120
Q

Extensor pollicis brevis action

A

Extends MCP joint of the first digit

121
Q

Extensor indicis origin

A

Distal posterior surface of the ulna and interosseous membrane

122
Q

Extensor indicis insertion

A

Tendon of extensor digitorum on the second digit (extensor, expansion or hood)

123
Q

Extensor indicis nerve

A

Deep radial nerve

124
Q

Extensor indicis nerve

A

Deep radial nerve

125
Q

Extensor indicis action

A

Extends second digit at the MCP and IP joints

MS 100 (5 decks)

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