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gross > Forearm > Flashcards

Forearm Flashcards

0
Q

Insertion of pronator teres

A

Middle of convexity of lateral surface of radius

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1
Q

Origin of pronator teres

A

Coronoid process of ulna and medial epicondyle of humerus

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2
Q

Innervation of pronator teres

A

Median nerve C6 and C7

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3
Q

Action of pronator teres

A

Pronates and flexes forearm

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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 2nd metacarpal

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6
Q

Innervation of flexor carpi radialis

A

Median nerve C6 and C7

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7
Q

Action of flexor carpi radialis

A

Flexes and abducts hand at wrist

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8
Q

Origin palmaris longus

A

Medial epicondyle of humerus

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9
Q

Insertion of palmaris longus

A

Distal half of retinaculum

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10
Q

Innervation of palmaris longus

A

Median nerve C7 and C8

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11
Q

Action of palmaris longus

A

Flexes hand and tenses palmar aponeurosis

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12
Q

Origin of flexor carpi ulnaris

A

Olecranon and posterior border of ulna

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13
Q

Insertion of flexor carpi ulnaris

A

Pisiform, hook of hamate, 5th metacarpAl

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14
Q

Innervation of flexor carpi ulnaris

A

Ulnar nerve C7 and C8

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15
Q

Action of flexor carpi ulnaris

A

Flexes and adducts hand at wrist

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16
Q

Origin of flexor digitorum superficialis

A

Humero-ulnar head: medial epicondyle of humerus and coronoid process of ulna
Radial head: oblique line of radius

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17
Q

Insertion of flexor digitorum superficialis

A

Shaft of middle phalanges of medial four digits

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18
Q

Innvervation of flexor digitorum superficialis

A

Median nerve C7, C8, T1

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19
Q

Action of flexor digitorum superficialis

A

Flexes at wrist joint
Flexes proximal interphalangeal joints of middle four digits, acting mote strongly its also flexes proximal middle phalanges at metacarpalphalangeal joints

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20
Q

Origin of flexor digitorum profundus

A

Proximal three quaters of medial and anteror surfaces of ulna and interoseous membrane

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21
Q

Insertion of flexor digitorum profundus

A

Bases of distal phalanges of 2nd- 5 th digits

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22
Q

Innervation of flexor digitorum profundas

A

lateral part: median nerve C8 and T1

Medial part: ulnar nerve C8 and T1

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23
Q

Action of flexor digitorum profundas

A

Flexes at wrist joint

Flexes distal interphalangeal joint of digits 2-5,

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24
Q

Origin of flexor pollicis longus

A

Anterior surface of radius amd adjacent interosseous membrane

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25
Q

Insertion of flexor pollicis longus

A

Base of distal phalanx of thumb

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26
Q

Innervation of flexor pollicis longus

A

Anterior interosseous nerve from median C8 and T1

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27
Q

Action of flexor pollicis longus

A

Flexes wrist

Flexes metacarpophalngeal and interphalangeal joimts of thumb

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28
Q

Origin of pronator quadratus

A

Distal quater of anterior surface of ulna

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29
Q

Insertion of pronator quadratus

A

Distal quater of anterior surface of radius

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30
Q

Innervation of pronator quadratus

A

Anterior interosseous nerve C8 and T1

31
Q

Action of pronator quadratus

A

Pronates forearm, deep fibers bind radius and ulna together

32
Q

Origin of brachioradialis

A

Lateral supraepicondylar ridge of humerus

33
Q

Insertion of brachioradialis

A

Lateral surface of distal end of radius

34
Q

Innervation of brachioradialis

A

Radial nerve C5, C6, C7

35
Q

Action of brachiobradialis

A

Weak flexion of elbow, best when forearm is mid pronated

36
Q

Origin of extensor carpi radialis longus

A

Lateral supraepicondylar ridge of humerus

37
Q

Insertion of extensor carpi radialis longus

A

DAOB of 2nd metacarpal

38
Q

Innveration of extensor carpi radialis longus

A

Radial nerve C6 and C7

39
Q

Action of extensor carpi radialis longus

A

Extends and radially deviates wrist joint

40
Q

Origin of extensor carpi radialis brevis

A

Lateral epicondyle of humerus

41
Q

Insertion of extensor carpi radialis brevis

A

DAOB of 3rd metacarpal

42
Q

Innervation of extensor carpi radialis brevis

A

Deep radial branch C7 and C8

43
Q

Action of extensor carpi radialis brevis

A

Extends and radially deviates wrist joint and active during fist clenching

44
Q

Origin of extensor digitorum

A

Lateral epicondyle of humerus

45
Q

Insertion of extensor digitorum

A

Extensor expansions of medial four fingers

46
Q

Innervation of extensor digitorum

A

Posterior interosseous C7 and C8

47
Q

Action of extensor digitorum

A

Extends wrist joint

Extends medial four fingers at metacarpal phalangeal joints and second at interphalageal joints

48
Q

Origin of extensor digiti minimi

A

Lateral epicondyle of humerus

49
Q

Insertion of extensor digiti minimi

A

Extensor expansion of 5th fingers

50
Q

Innveration of extensor digiti minimi

A

Posterior interoseous C7 and C8

51
Q

Action of extensor digiti minimi

A

Extends wrist joint

Extends 5th finger at metacarpal phalangeal joint and second at interphalangeal joiint

52
Q

Origin of extensor carpi ulnaris

A

Lateral epicondyle of humerus and posterior border of ulna

53
Q

Insertion of extensor carpi ulnaris

A

DAOB of base of 5th metacarpal

54
Q

Innervation of extensor carpi ulnaris

A

Posterior interoseous C7 and C8

55
Q

Action of extensor carpi ulnaris

A

Extends and ulnarlly deviates wrist joint

56
Q

Origin of abductor pollicis longus

A

Posteriorsurface of proximal halves of ulna, radius, and interosseous membrane

57
Q

Insertion of abductor pollicis longus

A

Base of 1st metacarpal

58
Q

Innervation of abductor pollicis longus

A

Post. Interoseous C7 and C8

59
Q

Action of abductor pollicis longus

A

Extends wrist joint

Abducts thumb and extends at carpometacrpal joint

60
Q

Origin of extensor pollicis longus

A

Posterior surface of middle third of ulna ans interoseous membrane

61
Q

Insertion of extensor pollicis longus

A

Dorsal aspect of base of distal phalanx of thumb

62
Q

Innvervation of extensor pollicis longus

A

Post. Int.

63
Q

Action of extensor pollicis longus

A

Extends wrist joint

Extends distal phalanx of thumb interphalangeal joint, metacarpalphalngeal joint and carpometacarpal joints

64
Q

Origin of extensor pollicis brevis

A

Posterior surface of distal third of radius and interosseous membrane

65
Q

Insertion extensor pollicis brevis

A

Dorsal aspect of base of proximal phalanx of thumb

66
Q

Innvervation of extensor pollicis brevis

A

Posterior interosseous nerve C7 and C8

67
Q

Action of extensor pollicis brevis

A

Extends wrist joint

Extends proximal phalanx of thumb at metacarpophalangeal joint, extends carpometacarpal joint

68
Q

Origin of extensor indicis

A

Posterior surface of distal third of ulna and interosseous membrane

69
Q

Insertion of extensor indicis

A

Extensor expansion of 2nd finger

70
Q

Innervation of extensor indicis

A

Posterior interosseous

71
Q

Action of extensor indicis

A

Extends wrist joint
Extends 2nd finger
Helps extend hand at wrist

72
Q

Origin of supinator

A

Lateral epicondyle of humerus, radial collateral and anular ligament, supinator fossa, crest of ulna

73
Q

Insertion of supinator

A

Lateral, posterior, and anterior surfaces if proximal third of radius

74
Q

Innervation of supinator

A

Deep radial branch C7 and C8

75
Q

Action of supinator

A

Supinates forearm

gross (13 decks)

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