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Muscles > Forearm > Flashcards

Forearm Flashcards

1
Q

pronator teres: Origin

A

humeral head: medial epicondyle of humerus (common flexor tendon)
ulnar head: coronoid process of the ulna

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2
Q

pronator teres: Insertion

A

radius

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3
Q

pronator teres: Nerve

A

median nerve

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4
Q

pronator teres: Action

A

pronation of forearm, flexes elbow

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5
Q

flexor carpi radialis: Origin

A

medial epicondyle of humerus (common flexor tendon)

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6
Q

flexor carpi radialis: Insertion

A

Bases of second and third metacarpal bones

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7
Q

flexor carpi radialis: Nerve

A

Median nerve

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8
Q

flexor carpi radialis: Action

A

Flexion and abduction at wrist

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9
Q

palmaris longus: Origin

A

medial epicondyle of humerus (common flexor tendon)

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10
Q

palmaris longus: Insertion

A

palmar aponeurosis

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11
Q

palmaris longus: Nerve

A

median nerve

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12
Q

palmaris longus: Action

A

wrist flexor

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13
Q

flexor carpi ulnaris: Origin

A

medial epicondyle of the humerus (common flexor tendon)

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14
Q

flexor carpi ulnaris: Insertion

A

pisiform

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15
Q

flexor carpi ulnaris: Nerve

A

muscular branches of ulnar nerve

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16
Q

flexor carpi ulnaris: Action

A

flexion and adduction of wrist

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17
Q

flexor digitorum superficialis: Origin

A

medial epicondyle of the humerus (common flexor tendon), as well as parts of the radius and ulna.

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18
Q

flexor digitorum superficialis: Insertion

A

phalanges

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19
Q

flexor digitorum superficialis: Nerve

A

median nerve

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20
Q

flexor digitorum superficialis: Action

A

flexor of fingers (primarily at proximal interphalangeal joints)

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21
Q

flexor policis longus: Origin

A

The middle 2/4 of the volar [disambiguation needed] surface of the radius and the adjacent interosseus membrane. (Also occasionally a small origin slightly on the medial epicondyle of the ulna.)

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22
Q

flexor policis longus: Insertion

A

The base of the distal phalanx of the thumb

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23
Q

flexor policis longus: Nerve

A

Anterior interosseous nerve (branch of median nerve) (C8, T1)

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24
Q

flexor policis longus: Action

A

Flexion of the thumb

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25
Q

flexor digitorum profundus: Origin

A

ulna

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26
Q

flexor digitorum profundus: Insertion

A

distal phalanges

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27
Q

flexor digitorum profundus: Nerve

A

median (anterior interosseous), muscular branches of ulnar

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28
Q

flexor digitorum profundus: Action

A

flex hand, interphalangeal joints

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29
Q

pronator quadratus: Origin

A

medial, anterior surface of the ulna

30
Q

pronator quadratus: Insertion

A

lateral, anterior surface of the radius

31
Q

pronator quadratus: Nerve

A

median nerve (anterior interosseous nerve)

32
Q

pronator quadratus: Action

A

pronates the forearm

33
Q

brachioradialis: Origin

A

Lateral supracondylar ridge of the humerus

34
Q

brachioradialis: Insertion

A

Distal radius (Radial styloid process)

35
Q

brachioradialis: Nerve

A

radial nerve

36
Q

brachioradialis: Action

A

Flexion of forearm

37
Q

extensor carpi radialis brevis: Origin

A

humerus at the anterior of lateral epicondyle (common extensor tendon)

38
Q

extensor carpi radialis brevis: Insertion

A

base of the 3rd metacarpal

39
Q

extensor carpi radialis brevis: Nerve

A

deep branch of the radial nerve

40
Q

extensor carpi radialis brevis: Action

A

extensor and abductor of the hand at the wrist joint

41
Q

extensor digitorum: Origin

A

lateral epicondyle (common extensor tendon)

42
Q

extensor digitorum: Insertion

A

2nd-4th phalange

43
Q

extensor digitorum: Nerve

A

posterior interosseous nerve (C7, C8)

44
Q

extensor digitorum: Action

A

extension of hand and fingers

45
Q

extensor digitorum minimi: Origin

A

the anterior portion of the lateral epicondyle of the humerus (common extensor tendon)

46
Q

extensor digitorum minimi: Insertion

A

extensor expansion, located at the base of the proximal phalanx of the finger on the dorsal side

47
Q

extensor digitorum minimi: Nerve

A

posterior interosseous nerve (C7, C8)

48
Q

extensor digitorum minimi: Action

A

extends the little finger at all joints

49
Q

extensor carpi ulnaris: Origin

A

Common extensor tendon (lateral epicondyle), ulna

50
Q

extensor carpi ulnaris: Insertion

A

5th metacarpal

51
Q

extensor carpi ulnaris: Nerve

A

posterior interosseous nerve (C7, C8)

52
Q

extensor carpi ulnaris: Action

A

extends and adducts the wrist

53
Q

anconeus: origin

A

Lateral epicondyle of the humerus

54
Q

anconeus: Insertion

A

lateral surface of the olecranon process and the superior part of the posterior ulna

55
Q

anconeus: Nerve

A

radial nerve (C7, C8, and T1)

56
Q

anconeus: Action

A

partly blended in with the triceps, which it assists in extension of the forearm. Stabilises the elbow and abducts the ulna during pronation.

57
Q

supinator: Origin

A

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

58
Q

supinator: Insertion

A

Lateral proximal radial shaft

59
Q

supinator: Nerve

A

deep branch of radial nerve (C7, C8)

60
Q

supinator: Action

A

supinates forearm

61
Q

abductor pollicis longus: Origin

A

ulna, radial styloid process

62
Q

abductor pollicis longus: Insertion

A

first metacarpal

63
Q

abductor pollicis longus: Nerve

A

posterior interosseous nerve (C7, C8)

64
Q

abductor pollicis longus: Action

A

abduction, extension of thumb

65
Q

extensor pollicis longus: Origin

A

ulna

66
Q

extensor pollicis longus: Insertion

A

thumb, distal phalanx

67
Q

extensor pollicis longus: Nerve

A

posterior interosseous nerve (C7, C8)

68
Q

extensor pollicis longus: Action

A

extension of the thumb (metacarpophalangeal and interphalangeal)

69
Q

extersor indicis: Origin

A

ulna

70
Q

extersor indicis: Insertion

A

index finger (extensor hood)

71
Q

extersor indicis: Nerve

A

posterior interosseous nerve (C7, C8)

72
Q

extersor indicis: Action

A

extends index finger, wrist

Muscles (11 decks)

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