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Anatomy > Muscles Of The Forearm > Flashcards

Muscles Of The Forearm Flashcards

0
Q

Insertion of pronator teres

A

By common tendon into lateral radius, midshaft

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1
Q

Origin of pronator teres

A

Medial epicondyle of humerus; coronoid process of ulna

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2
Q

Action of pronator teres

A

Pronates forearm

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3
Q

Innervation of pronator teres

A

Median nerve

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4
Q

Origin of flexor carpi radialis

A

Medial epicondyle of humerus

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5
Q

Insertion of flexor carpi radialis

A

Base of second and third metacarpals; insertion tendon easily seen and provides guide to position of radial artery (used for pulse taking) at wrist

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6
Q

Action of flexor carpi radialis

A

Powerful flexor of hand

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7
Q

Innervation of flexor carpi radialis

A

Median nerve

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8
Q

Origin of palmaris longus

A

Medial epicondyle of humerus

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9
Q

Insertion of palmaris longus

A

Fascia of Palm (Palmar aponeurosis)

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10
Q

Action of palmaris longus

A

Tenses skin and fascia of Palm during hand movements

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11
Q

Innervation of palmaris longus

A

Median nerve

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12
Q

Origin of flexor carpi ulnaris

A

Medial epicondyle of humerus; olecranon and posterior surface of ulna

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13
Q

Insertion of flexor carpi ulnaris

A

Pisiform and hamate bones and base of fifth metacarpal

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14
Q

Action of flexor carpi ulnaris

A

Powerful flexor of wrist; also Adducts hand

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15
Q

Innervation of flexor carpi ulnaris

A

Ulnar nerve

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16
Q

Origin of flexor digitorum superficialis

A

Medial epicondyle of humerus, coronoid process of ulna; shaft of radius

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17
Q

Insertion of flexor digitorum superficialis

A

By four tendons into middle phalanges of fingers 2-5

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18
Q

Action of flexor digitorum superficialis

A

Flexes hand and middle phalanges of fingers 2-5

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19
Q

Innervation of flexor digitorum superficialis

A

Median nerve

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20
Q

Origin of flexor pollicis longus

A

Anterior surface of radius and interosseous membrane

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21
Q

Insertion of flexor pollicis longus

A

Distal phalanx of thumb

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22
Q

Action of flexor pollicis longus

A

Flexes distal phalanx of thumb

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23
Q

Innervation of flexor pollicis longus

A

Median nerve

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24
Q

Origin of flexor digitorum profundus

A

Anteromedial surface of ulna and interosseous membrane

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25
Q

Insertion of flexor digitorum profundus

A

By four tendons into distal phalanges of fingers 2-5

26
Q

Action of flexor digitorum profundus

A

Flexes distal interphalangeal joints

27
Q

Innervation of flexor digitorum profundus

A

Medial half by ulnar nerve, lateral half by median nerve

28
Q

Origin of pronator quadratus

A

Distal portion of anterior ulnar shaft

29
Q

Insertion of pronator quadratus

A

Distal surface of anterior radius

30
Q

Action of pronator quadratus

A

Prime mover of forearm pronation

31
Q

Innervation of pronator quadratus

A

Median nerve

32
Q

Origin of extensor carpi radialis longus

A

Lateral supracondylar ridge of humerus

33
Q

Insertion of extensor carpi radialis longus

A

Base of second metacarpal

34
Q

Action of extensor carpi radialis longus

A

Extends wrist, abducts wrist

35
Q

Innervation of extensor carpi radialis longus

A

Radial nerve

36
Q

Origin of extensor carpi radialis brevis

A

Lateral epicondyle of humerus

37
Q

Insertion of extensor carpi radialis brevis

A

Base of third metacarpal

38
Q

Action of extensor carpi radialis brevis

A

Extends and abducts wrist

39
Q

Innervation of extensor carpi radialis brevis

A

Radial nerve

40
Q

Origin of extensor digitorum

A

Lateral epicondyle of humerus

41
Q

Insertion of extensor digitorum

A

By four tendons into extensor expansions and distal phalanges of fingers 2-5

42
Q

Action of extensor digitorum

A

Prime mover of finger Flexion

43
Q

Innervation of extensor digitorum

A

Radial nerve

44
Q

Origin of extensor carpi ulnaris

A

Lateral epicondyle of humerus and posterior border of ulna

45
Q

Insertion of extensor carpi ulnaris

A

Base of fifth metacarpal

46
Q

Action of extensor carpi ulnaris

A

Extends wrist and Adducts wrist

47
Q

Innervation of extensor carpi ulnaris

A

Radial nerve

48
Q

Origin of supinator

A

Lateral epicondyle of humerus; proximal ulna

49
Q

Insertion of supinator

A

Proximal end of radius

50
Q

Action of supinator

A

Assists biceps brachii to forcibly supinate forearm

51
Q

Innervation of supinator

A

Radial nerve

52
Q

Origin of abductor pollicis longus

A

Posterior surface of radius and ulna; interosseous membrane

53
Q

Insertion of abductor pollicis longus

A

Base of first metacarpal and trapezium

54
Q

Action of abductor pollicis longus

A

Abducts and extends thumb

55
Q

Innervation of abductor pollicis longus

A

Radial nerve

56
Q

Origin of extensor pollicis brevis and longus

A

Dorsal shaft of radius and ulna; interosseous membrane

57
Q

Insertion of extensor pollicis brevis and longus

A

Base of proximal (brevis) and distal (longus) phalanx of thumb

58
Q

Action of extensor pollicis brevis and longus

A

Extends thumb

59
Q

Innervation of extensor pollicis brevis and longus

A

Radial nerve

60
Q

Origin of extensor indicis

A

Posterior surface of distal ulna; interosseous membrane

61
Q

Insertion of extensor indicis

A

Extensor expansion of index finger; joins tendon of extensor digitorum

62
Q

Action of extensor indicis

A

Extends index finger

63
Q

Innervation of extensor indicis

A

Radial nerve

Anatomy (13 decks)

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