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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
Flexor digitorum profundus (FDP) action
Primary flexes DIP and assist flexions of PIP, MCP joints of the medial four digits and assist wrist flexion
26
Flexor pollicis longus (FPL) origin
Anterior surface of radius (middle 1/2), interosseus membrane
27
Flexor pollicis longus (FPL) insertion
Base of distal phalanx of first digit (thumb)
28
Flexor pollicis longus (FPL) nerve
Median nerve. Anterior interosseus branch
29
Flexor pollicis longus (FPL) action
Flexes IP and MCP joints of the first digit (thumb)
30
Pronator quadratus (PQ) origin
Distal 1/4 of the anterior surface of ulna
31
Pronator quadratus (PQ) insertion
Distal 1/4 of the anterior surface of radius (slightly distal to origin)
32
Pronator quadratus (PQ) nerve
Median nerve. Anterior interosseus branch
33
Pronator quadratus (PQ) action
Pronates forearm
34
Brachioradialis origin
Lateral supracondylar ridge of the humerus (and lateral intermuscular septum)
35
Brachioradialis insertion
Base of styloid process of the radius
36
Brachioradialis nerve
Radial nerve
37
Brachioradialis action
Flexes forearm at elbow joint and rotates forearm to the midprone position
38
Extensor carpi radialis longus (ECRL) origin
Distal 1/3 of the lateral supracondylar ridge of humerus
39
Extensor carpi radialis longus (ECRL) insertion
Base of 2nd metacarpal (dorsal surface)
40
Extensor carpi radialis longus (ECRL) nerve
Radial nerve
41
Extensor carpi radialis longus (ECRL) action
Extends and radially deviates (abducts) the wrist
42
Extensor carpi radialis brevis (ECRB) origin
Lateral epicondyle of humerus via common extensor tendon
43
Extensor carpi radialis longus (ECRL) insertion
Base of 2nd metacarpal (dorsal surface)
44
Extensor carpi radialis longus (ECRL) nerve
Radial nerve
45
Extensor carpi radialis longus (ECRL) action
Extends and radially deviates (abducts) the wrist
46
Extensor digitorum (ED) origin
Lateral epicondyle of humerus via common extensor tendon
47
Extensor digitorum (ED) insertion
Middle and distal phalanges of the medial four digits
48
Extensor digitorum (ED) nerve
Deep radial nerve
49
Extensor digitorum (ED) action
Extends medial four digits at MCP and IP joints and assists wrist extension
50
Extensor digitorum (ED) action
Extends medial four digits at MCP and IP joints and assists wrist extension
51
Extensor digit minimi (EDM) origin
Lateral epicondyle of humerus via common extensor tendon
52
Extensor digit minimi (EDM) insertion
Tendon of extensor digitorum on fifth digit (extensor expansion or hood)
53
Extensor digit minimi (EDM) nerve
Deep radial nerve
54
Extensor digit minimi (EDM) action
Extends 5th digit at MCP and IP joints
55
Extensor carpi ulnaris (ECU) origin
Lateral epicondyle of humerus via common extensor tendon and posterior border of ulna
56
Extensor carpi ulnaris (ECU) insertion
Base of 5th metacarpal (ulnar surface)
57
Extensor carpi ulnaris (ECU) nerve
Deep radial nerve
58
Extensor carpi ulnaris (ECU) action
Extends and ulnarly deviates (adducts) the wrist
59
Abductor pollicis brevis origin
Flexor retinaculum, scaphoid and tubercle of the trapezium
60
Abductor pollicis brevis insertion
Base of proximal phalanx of first digit (lateral/radial aspect)
61
Abductor pollicis brevis nerve
Median nerve
62
Abductor pollicis brevis action
Abducts first digit at CMC joint
63
Opponens pollicis origin
Flexor retinaculum and trapezium
64
Opponens pollicis insertion
Lateral shaft of first metacarpal (radial side)
65
Opponens pollicis nerve
Median nerve
66
Opponens pollicis action
Opposition of the first digit at the CMC joint
67
Flexor pollicis brevis origin
Flexor retinaculum and trapezium
68
Flexor pollicis brevis insertion
Base of proximal phalanx of first digit (lateral/radial aspect)
69
Flexor pollicis brevis nerve
Median nerve
70
Flexor pollicis brevis nerve
Median nerve
71
Flexor pollicis brevis action
Flexes first digit at MCP and CMC joints
72
Adductor pollicis origin
Oblique head: Capitate and bases of metacarpals 2 and 3 Transverse head: 3rd metacarpal -anterior surface
73
Adductor pollicis insertion
Medial side of the proximal phalanx of the first digit
74
Adductor pollicis nerve
Deep branch of ulnar nerve
75
Adductor pollicis action
Adducts first digit and assists with flexion at MCP and CMC joint
76
Palmaris brevis origin
Flexor retinaculum and palmar aponeurosis
77
Palmaris brevis insertion
Skin on ulnar border of palm of hand
78
Palmaris brevis nerve
Superficial branch of ulnar nerve
79
Palmaris brevis action
Draws skin toward middle of palm
80
Abductor digiti minimi origin
Pisiform
81
Abductor digiti minimi insertion
Base of proximal phalanx of 5th digit
82
Abductor digiti minimi nerve
Deep branch of ulnar nerve
83
Abductor digiti minimi action
Abducts 5th digit at MCP joint
84
Flexor digiti minimi brevis origin
Flexor retinaculum and hook of hamate
85
Flexor digiti minimi brevis insertion
Base of proximal phalanx of 5th digit
86
Flexor digiti minimi brevis nerve
Deep branch of ulnar nerve
87
Flexor digiti minimi brevis action
Flexes 5th digit at the MCP joint
88
Opponens digiti minimi origin
Flexor retinaculum and hook of hamate
89
Opponens digiti minimi insertion
Medial boarder of shaft of 5th metacarpal
90
Opponens digiti minimi nerve
Deep branch of ulnar nerve
91
Opponens digiti minimi action
Opposition of 5th digit of CMC joint
92
Lumbricales origin
Tendons of flexor digitorum profundus (Off lateral aspect of 2nd-5th tendons and off medial aspect of 3rd and 4th tendons also)
93
Lumbricales insertion
Extensor expansions (hoods) of digits 2-5
94
Lumbricales nerve
Median nerve for 1 and 2 mm and ulnar for 3 and 4 mm
95
Lumbricales action
Flexes at MCP joints and extends at IP joints
96
Lumbricales action
Flexes at MCP joints and extends at IP joints
97
Dorsal interosseii origin
Adjacent sides of the shaft of the metacarpals (2 heads)
98
Dorsal interosseii insertion
Extensor expansions and bases of proximal phalanges of digits 2, 3, 4
99
Dorsal interosseii nerve
Deep branch of ulnar nerve
100
Dorsal interosseii action
Abduct digits, flexes at MCP joints and extends at IP joints
101
Palmar interosseii origin
Palmar medial surface of 2nd metacarpal and palmar lateral surface of 4th and 5th metacarpal (1 head)
102
Palmar interosseii insertion
Extensor expansions and bases of proximal phalanges of digits 2, 4, and 5
103
Palmar interosseii nerve
Deep branch of ulnar nerve
104
Palmar interosseii action
Adduct digit and flexes MCP joints and extends at IP joints
105
Supinator origin
Lateral epicondyle of humerus, radial collateral and annular ligaments, and the supinator crest of the ulna
106
Supinator insertion
Superior 1/3 of the lateral and anterior surface of the radius
107
Supinator nerve
Deep radial nerve
108
Supinator action
Supinates forearm and may assist in elbow flexion
109
Abductor pollicis longus origin
Posterior surface of middle of radius and ulna and interosseous membrane
110
Abductor pollicis longus insertion
Base of 1st metacarpal (lateral/radial side)
111
Abductor pollicis longus nerve
Deep radial nerve
112
Abductor pollicis longus action
Abduct and extends first digit at carpometacarpal joint and abduct wrist
113
Extensor pollicis longus origin
Middle 1/3 of the posterior surface of the ulna and interosseous membrane
114
Extensor pollicis longus insertion
Base of distal phalanx of the first digit
115
Extensor pollicis longus nerve
Deep radial nerve
116
Extensor pollicis longus action
Extend IP joint of first digit and assist extension at the MCP joint
117
Extensor pollicis brevis origin
Posterior surface of the middle of the radius and interosseous membrane
118
Extensor pollicis brevis insertion
Base of proximal phalanx of first digit
119
Extensor pollicis brevis nerve
Deep radial nerve
120
Extensor pollicis brevis action
Extends MCP joint of the first digit
121
Extensor indicis origin
Distal posterior surface of the ulna and interosseous membrane
122
Extensor indicis insertion
Tendon of extensor digitorum on the second digit (extensor, expansion or hood)
123
Extensor indicis nerve
Deep radial nerve
124
Extensor indicis nerve
Deep radial nerve
125
Extensor indicis action
Extends second digit at the MCP and IP joints

MS 100 (5 decks)

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