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Musculoskeletal System > Muscles of the Forearm > Flashcards

Muscles of the Forearm Flashcards

1
Q

PRONATOR TERES (Origin)

A

Medial epicondyle
Coronaid process of Ulna

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2
Q

PRONATOR TERES (Insertion)

A

Lateral aspect of shaft of Radius

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3
Q

PRONATOR TERES (Action)

A

Pronation (radius over ulna)

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4
Q

PRONATOR TERES (Innervation)

A

Median Nerve

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5
Q

FLEXOR CARPI RADIALIS (Origin)

A

Medial epicondyle

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6
Q

FLEXOR CARPI RADIALIS (Insertion)

A

Base of 2nd and 3rd metacarpals

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7
Q

FLEXOR CARPI RADIALIS (Action)

A

Flexion of wrist joint
Abduction of wrist joint

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8
Q

FLEXOR CARPl RADIALIS (Innervation)

A

Median Nerve

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9
Q

PALMARIS LONGUS (Origin)

A

Medial epicondyle

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10
Q

PALMARIS LONGUS (Insertion)

A

Palmar aponeurosis
Distal half of Flexor Retinaculum

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11
Q

PALMARIS LONGUS (Action)

A

Tenses palmar aponeurosis
Flexes wrist

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12
Q

PALMARIS LONGUS (Innervation)

A

Median Nerve

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13
Q

FLEXOR CARPI ULNARIS (Origin)

A

Medial epicondyle
Posterior border of ulna

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14
Q

FLEXOR CARPI ULNARIS (Insertion)

A

Pisiform
Hook of Hamate
Base of 5th metacarpal

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15
Q

FLEXOR CARPI ULNARIS (Action)

A

Flexion of wrist joint
Adduction of wrist joint

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16
Q

FLEXOR CARPI ULNARIS (Innervation)

A

Ulnar Nerve

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17
Q

FLEXOR DIGITORUM SUPERFICIALIS (Origin)

A

Medial epicondyle
Coronaid process of Humerus
Anterior surface of Radius

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18
Q

FLEXOR DIGITORUM SUPERFICIALIS (Insertion)

A

Palmar surface of shaft of middle phalanges of medial 4 digits

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19
Q

FLEXOR DIGITORUM SUPERFICIALIS (Action)

A

Flexion of proximal interphalangeal joints
Assist in flexion of wrist and metacarpophalangeal joints

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20
Q

FLEXOR DIGITORUM SUPERFICIALIS (Innervation)

A

Median Nerve

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21
Q

FLEXOR DIGITORUM PROFUNDUS (Origin)

A

Anterior and Medial surfaces of Ulna
Medial half interosseous membrane

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22
Q

FLEXOR DIGITORUM PROFUNDUS (Insertion)

A

Bases of Distal phalanges of medial 4 digits

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23
Q

FLEXOR DIGITORUM PROFUNDUS (Action)

A

Flexion of distal interphalangeal joints

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24
Q

FLEXOR DIGITORUM PROFUNDUS (Innervation)

A

MEDIAL half - Ulnar Nerve
LATERAL half - Anterior Interosseous Nerve (Median Nerve)

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25
Q

FLEXOR POLLICIS LONGUS (Origin)

A

Anterior surface of shaft of Radius

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26
Q

FLEXOR POLLICIS LONGUS (Insertion)

A

Base of Distal phalanx of thumb

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27
Q

FLEXOR POLLICIS LONGUS (Action)

A

Flexion interphalangeal joint of thumb

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28
Q

FLEXOR POLLICIS LONGUS (Innervation)

A

Anterior Interosseous Nerve (Median Nerve)

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29
Q

PRONATOR QUADRATUS (Origin)

A

Distal surface anteromedial aspect of Ulnar shaft

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30
Q

PRONATOR QUADRATUS (Insertion)

A

Distal surface anterolateral aspect of Radial shaft

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31
Q

PRONATOR QUADRATUS (Action)

A

Pronation

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32
Q

PRONATOR QUADRATUS (Innervation)

A

Anterior Interosseous Nerve (Median Nerve)

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33
Q

CUBITAL FOSSA

A

LATERAL border ~ Brachioradialis
MEDIAL border ~ Pronator Teres
- Brachial Artery
- Median Nerve
- Median Cubital vein

34
Q

BRACHIORADIALIS (Origin)

A

Proximal part lateral supraepicondylar ridge of humerus
Adjacent intermuscular septum

35
Q

BRACHIORADIALIS (Insertion)

A

Lateral surface distal end of Radius

36
Q

BRACHIORADIALIS (Action)

A

Flexor of elbow when midpronated
(Drinking Muscle)

37
Q

BRACHIORADIALIS (Innervation)

A

Radial Nerve

38
Q

EXTENSOR CARPI RADIALIS LONGUS (Origin)

A

Lateral supraepicondylar ridge of Humerus

39
Q

EXTENSOR CARPI RADIALIS LONGUS (Insertion)

A

Dorsal surface base of 2nd metacarpal

40
Q

EXTENSOR CARPI RADIALIS LONGUS (Action)

A

Extends wrist joint
Abducts wrist joint

41
Q

EXTENSOR CARPI RADIALIS LONGUS (Innervation)

A

Radial Nerve

42
Q

EXTENSOR CARPI RADIALIS BREVIS (Origin)

A

Lateral epicondyle Humerus
Adjacent intermuscular septum

43
Q

EXTENSOR CARPI RADIALIS BREVIS (Insertion)

A

Dorsal base of 2nd and 3rd metacarpals

44
Q

EXTENSOR CARPI RADIALIS BREVIS (Action)

A

Extends wist joint
Abducts wrist joint

45
Q

EXTENSOR CARPI RADIALIS BREVIS (Innervation)

A

Deep branch Radial Nerve

46
Q

EXTENSOR DIGITORUM (Origin)

A

Lateral epicondyle Humerus
Adjacent intermuscular septum and deep fascia

47
Q

EXTENSOR DIGITORUM (Insertion)

A

Extensor hoods Medial 4 digits

48
Q

EXTENSOR DIGITORUM (Action)

A

Extends Medial 4 digits

49
Q

EXTENSOR DIGITORUM (Innervation)

A

Posterior Interosseous Nerve (Radial Nerve)

50
Q

EXTENSOR DIGITI MINIMI (Origin)

A

Lateral epicondyle Humerus
Adjacent intermuscular septum

51
Q

EXTENSOR DIGITI MINIMI (Insertion)

A

Extensor hood little finger

52
Q

EXTENSOR DIGITI MINIMI (Action)

A

Extension of little finger

53
Q

EXTENSOR DIGITI MINIMI (Innervation)

A

Posterior Interosseous Nerve (Radial Nerve)

54
Q

EXTENSOR CARPI ULNARIS (Origin)

A

Lateral epicondyle Humerus
Posterior border Ulna

55
Q

EXTENSOR CARPI ULNARIS (Insertion)

A

Tubercle on base Medial side of 5th metacarpal

56
Q

EXTENSOR CARPI ULNARIS (Action)

A

Extends wrist joint
Adducts wrist joint

57
Q

EXTENSOR CARPI ULNARIS (Innervation)

A

Posterior Interosseous Nerve (Radial Nerve)

58
Q

ANCONEUS (Origin)

A

Lateral epicondyle Humerus

59
Q

ANCONEUS (Insertion)

A

Olecranon
Proximal Posterior surface Ulna

60
Q

ANCONEUS (Action)

A

Abducts Ulna during Pronation

61
Q

ANCONEUS (Innervation)

A

Radial Nerve

62
Q

SUPINATOR (Origin)

A

SUPERFICIAL layer:
- Humeral lateral epicondyle
- Radial collateral and annular ligament
DEEP layer:
- Supinator crest of Ulna

63
Q

SUPINATOR (Insertion)

A

Lateral surface Radius

64
Q

SUPINATOR (Action)

A

Supination

65
Q

SUPINATION (Innervation)

A

Posterior Interosseous Nerve (Radial Nerve)

66
Q

EXTENSOR INDICIS (Origin)

A

Posterior surface Ulna
Adjacent interosseous membrane

67
Q

EXTENSOR INDICIS (Insertion)

A

Extensor hood of index finger

68
Q

EXTENSOR INDICIS (Action)

A

Extends index finger

69
Q

EXTENSOR INDICIS (Innervation)

A

Posterior Interosseous Nerve (Radial Nerve)

70
Q

EXTENSOR POLLICIS LONGUS (Origin)

A

Posterior surface UIna
Adjacent interosseous membrane

71
Q

EXTENSOR POLLICIS LONGUS (Insertion)

A

Dorsal surface base of proximal phalanx of thumb

72
Q

EXTENSOR POLLICIS LONGUS (Action)

A

Extends interphalangeal joint of thumb

73
Q

EXTENSOR POLLICIS LONGUS (Innervation)

A

Posterior Interosseous Nerve (Radial Nerve)

74
Q

EXTENSOR POLLICIS BREVIS (Origin)

A

Posterior surface Radius
Adjacent interosseous membrane

75
Q

EXTENSOR POLLICIS BREVIS (Insertion)

A

Dorsal surface base of proximal phalanx of thumb

76
Q

EXTENSOR POLLICIS BREVIS (Action)

A

Extends metacarpophalangeal joint of thumb

77
Q

EXTENSOR POLLICIS BREVIS (Innernation)

A

Posterior Interosseous Nerve (Radial Nerve)

78
Q

ABDUCTOR POLLICIS LONGUS (Origin)

A

Posterior surfaces Ulna and Radius
Adjacent interosseous membrane

79
Q

ABDUCTOR POLLICIS LONGUS (Insertion)

A

Lateral side base of 1st metacarpal

80
Q

ABDUCTOR POLLICIS LONGUS (Action)

A

Abducts carpometacarpal joint of thumb

81
Q

ABDUCTOR POLLICIS LONGUS (Innervation)

A

Posterior Interosseous Nerve (Radial Nerve)

82
Q

ANATOMICAL SNUFFBOX

A

MEDIALLY:
- Extensor Pollicis Longus
LATERALLY:
- Abductor Pollicis Longus
- Extensor Pollicis Brevis
FLOOR = Scaphoid bone

Musculoskeletal System (17 decks)

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