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Muscles > Forearm > Flashcards

Forearm Flashcards

1
Q

Pronator Teres Origin

A

Humeral Head: Medial Epicondyle

Ulnar Head: Coronoid process of ulna

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2
Q

Pronator Teres Insertion

A

Middle of lateral shaft of radius

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3
Q

Pronator Teres Action

A

Pronates and flexes forearm

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4
Q

Pronator Teres Innervation

A

Median nerve (C6,C7) (enters between two heads)

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5
Q

Pronator Teres Blood Supply

A

Muscular branches of ulnar and radial arteries

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6
Q

Flexor Carpi Radialis Origin

A

Medial Epicondyle

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7
Q

Flexor Carpi Radialis Insertion

A

Base of second metacarpal

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8
Q

Flexor Carpi Radialis Action

A

Flexes hand at the wrist joint; abducts hand (radially deviates)

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9
Q

Flexor Carpi Radialis Innervation

A

Median nerve (C6,C7)

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10
Q

Flexor Carpi Radialis Blood Supply

A

Muscular branches of radial artery

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11
Q

Palmaris Longus Origin

A

Medial Epicondyle

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12
Q

Palmaris Longus Insertion

A

Flexor retinaculum and palmar aponeurosis

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13
Q

Palmaris Longus Action

A

Flexes wrist and tenses palmar aponeurosis

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14
Q

Palmaris Longus Innervation

A

Median nerve (C6,C7)

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15
Q

Palmaris Longus Blood Supply

A

Muscular branches of ulnar artery

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16
Q

Flexor Digitorum Superficialis Origin

A

Humeroulnar head: medial epicondyle and coronoid process

Ulnar head: Anterior Radius

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17
Q

Flexor Digitorum Superficialis Insertion

A

4 tendons onto sides of middle phalanx of digits 2-5

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18
Q

Flexor Digitorum Superficialis Action

A

Flexes middle and proximal phalanges of 2-5th digits, and flexes wrist

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19
Q

Flexor Digitorum Superficialis Innervation

A

Median nerve (C7, C8, T1)

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20
Q

Flexor Digitorum Superficialis Blood Supply

A

Muscular branches of ulnar and radial artery

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21
Q

Flexor Carpi Ulnaris Origin

A

Humeral head: medial epicondyle

Ulnar head: olecranon

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22
Q

Flexor Carpi Ulnaris Insertion

A

Pisiform bone and by ligaments to the hamate and 5th metacarpal bone

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23
Q

Flexor Carpi Ulnaris Action

A

Flexes wrist, adducts hand (ulnar deviation)

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24
Q

Flexor Carpi Ulnaris Innervation

A

Ulnar Nerve (C7,C8)

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25
Q

Flexor Carpi Ulnaris Blood Supply

A

Muscular branches of ulnar artery

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26
Q

Flexor Digitorum Profundus Origin

A

2/3 of flexor surface of Ulna and interosseous membrane

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27
Q

Flexor Digitorum Profundus Insertion

A

Anterior surface of 2-5th distal phalanges

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28
Q

Flexor Digitorum Profundus Action

A

Flexes distal phalanx of 2-5th digits, flexes wrist

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29
Q

Flexor Digitorum Profundus Innervation

A

Median nerve by interosseous branch, ulnar nerve (C8-T1)

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30
Q

Flexor Digitorum Profundus Blood Supply

A

Muscular branches of the ulnar and radial artery; anterior interosseous artery (from ulnar artery)

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31
Q

Flexor Pollicis Longus Origin

A

Radial head: Anterior radius and adjacent interosseous membrane
Humeral Head: Medial Epicondyle or Coronoid

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32
Q

Flexor Pollicis Longus Insertion

A

Base of distal phalanx of thumb

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33
Q

Flexor Pollicis Longus Action

A

Flexes distal phalanx, helps to flex proximal phalanx of thumb

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34
Q

Flexor Pollicis Longus Innervation

A

Median nerve by interosseous branch (C8, T1)

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35
Q

Flexor Pollicis Longus Blood Supply

A

Muscular branches of radial artery, and anterior interosseous artery

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36
Q

Pronator Quadratus Origin

A

Distal fourth of anterior ulna

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37
Q

Pronator Quadratus Insertion

A

Distal fourth of anterior radius

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38
Q

Pronator Quadratus Action

A

Pronates hand

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39
Q

Pronator Quadratus Innervation

A

Median nerve by interosseous branch (C8, T1)

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40
Q

Pronator Quadratus Blood Supply

A

Anterior interosseous artery and muscular branches of the radial artery

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41
Q

Brachioradialis Origin

A

Upper 2/3 of lateral supracondylar ridge of humerus

42
Q

Brachioradialis Insertion

A

Lateral aspect of base of the styloid process of radius

43
Q

Brachioradialis Action

A

Flexes forearm when semipronated

44
Q

Brachioradialis Innervation

A

Radial Nerve (C5, C6)

45
Q

Brachioradialis Blood Supply

A

Radial recurrent artery

46
Q

Extensor Carpi Radialis Longus Origin

A

Lower 1/3 of lateral supracondylar ridge of humerus

47
Q

Extensor Carpi Radialis Longus Insertion

A

Dorsal surface of the base of the 2nd metacarpal

48
Q

Extensor Carpi Radialis Longus Action

A

Extends hand, abducts wrist (radial deviation)

49
Q

Extensor Carpi Radialis Longus Innervation

A

Radial nerve (C6, C7)

50
Q

Extensor Carpi Radialis Longus Blood Supply

A

Radial Recurrent artery

51
Q

Extensor Carpi Radialis Brevis Origin

A

Lateral epicondyle

52
Q

Extensor Carpi Radialis Brevis Insertion

A

Dorsal surface of the base of the 3rd metacarpal

53
Q

Extensor Carpi Radialis Brevis Action

A

Extends wrist, abducts wrist (radial deviation)

54
Q

Extensor Carpi Radialis Brevis Innervation

A

Radial nerve (C6, C7)

55
Q

Extensor Carpi Radialis Brevis Blood Supply

A

Radial Recurrent Artery

56
Q

Extensor Digitorum Origin

A

Lateral Epicondyle

57
Q

Extensor Digitorum Insertion

A

Dorsum of middle and distal 2-5 phalanges

58
Q

Extensor Digitorum Action

A

Extends fingers and hand

59
Q

Extensor Digitorum Innervation

A

Posterior interosseous branch of Radial Nerve (C7, C8)

60
Q

Extensor Digitorum Blood Supply

A

Posterior interosseous artery

61
Q

Extensor Digiti Minimi Origin

A

Lateral Epicondyle

62
Q

Extensor Digiti Minimi Insertion

A

Dorsal digital expansion of little finger

63
Q

Extensor Digiti Minimi Action

A

Extends little finger and hand

64
Q

Extensor Digiti Minimi Innervation

A

Posterior Interosseous branch of Radial Nerve (C7, C8)

65
Q

Extensor Digiti Minimi Blood Supply

A

Posterior interosseous artery

66
Q

Extensor Carpi Ulnaris Origin

A

Lateral Epicondyle

67
Q

Extensor Carpi Ulnaris Insertion

A

Medial side of base of 5th metacarpal

68
Q

Extensor Carpi Ulnaris Action

A

Extends and adducts hand (ulnar deviation)

69
Q

Extensor Carpi Ulnaris Innervation

A

Posterior Interosseous branch of radial nerve (C7,C8)

70
Q

Extensor Carpi Ulnaris Blood Supply

A

Posterior interosseous artery

71
Q

Anconeus Origin

A

Lateral Epicondyle

72
Q

Anconeus Insertion

A

Lateral side of olecranon and ulna

73
Q

Anconeus Action

A

Helps extend forearm at elbow

74
Q

Anconeus Innervation

A

Radial Nerve (C7, C8, T1)

75
Q

Anconeus Blood Supply

A

Deep brachial artery

76
Q

Extensor Pollicis Longus Origin

A

Posterior ulna and interosseous membrane

77
Q

Extensor Pollicis Longus Insertion

A

Base of distal phalanx of thumb

78
Q

Extensor Pollicis Longus Action

A

Extends thumb, and (to a minor extent) the hand

79
Q

Extensor Pollicis Longus Innervation

A

Posterior interosseous branch of radial nerve (C7, C8)

80
Q

Extensor Pollicis Longus Blood Supply

A

Posterior interosseous artery

81
Q

Extensor Pollicis Brevis Origin

A

Posterior radius and interosseous membrane

82
Q

Extensor Pollicis Brevis Insertion

A

Base of proximal phalanx of thumb

83
Q

Extensor Pollicis Brevis Action

A

Extends proximal phalanx and metacarpal of thumb

84
Q

Extensor Pollicis Brevis Innervation

A

Posterior interosseous branch of radial nerve (C7, C8)

85
Q

Extensor Pollicis Brevis Blood Supply

A

Posterior interosseous artery

86
Q

Abductor Pollicis Longus Origin

A

Posterior radius and ulna; and interosseous membrane

87
Q

Abductor Pollicis Longus Insertion

A

Radial side base of first metacarpal, and on the trapezoid bone

88
Q

Abductor Pollicis Longus Action

A

Abducts and assists in extending the thumb

89
Q

Abductor Pollicis Longus Innervation

A

Posterior interosseous branch of radial nerve (C7, C8)

90
Q

Abductor Pollicis Longus Blood Supply

A

Posterior interosseous artery

91
Q

Extensor Indicis Origin

A

Posterior ulna and interosseous membrane

92
Q

Extensor Indicis Insertion

A

Extensor hood of index finger

93
Q

Extensor Indicis Action

A

Extends index finger and helps extend hand

94
Q

Extensor Indicis Innervation

A

Posterior interosseous branch of radial nerve (C7, C8)

95
Q

Extensor Indicis Blood Supply

A

Posterior interosseous artery

96
Q

Supinator Origin

A

Lateral Epicondyle, radial collateral ligament, supinator crest of ulna

97
Q

Supinator Insertion

A

Lateral proximal 1/3 of radius

98
Q

Supinator Action

A

Supinates forearm

99
Q

Supinator Innervation

A

Posterior interosseous branch of radial nerve (C6)

100
Q

Supinator Blood Supply

A

Radial recurrent artery

Muscles (9 decks)

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