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anatomy > muscles of forearm > Flashcards

muscles of forearm Flashcards

1
Q

pronator teres origins and insertions

A

humeral - medial epicondyle
ulnar - coronoid process of ulna

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2
Q

pronator teres actions

A

pronation
flexes forearm

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3
Q

pronator teres innervation

A

median nerve

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4
Q

pronator quadratus origin and insertion

A

ulna -> radius

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5
Q

pronator quadratus action

A

pronation of hand

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6
Q

pronator quadratus innervation

A

median nerve

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7
Q

flexor carpi radialis origin and insertion

A

medial epicondyle -> metacarpals

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8
Q

flexor carpi radialis action

A

flexes hand at wrist joint
wrist abduction

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9
Q

flexor carpi radialis innervation

A

median nerve

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10
Q

palmaris longus origin and insertion

A

medial epicondyle -> retinaculum

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11
Q

palmaris longus action

A

flexes hand

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12
Q

palmaris longus innervation

A

median nerve

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13
Q

flexor carpi ulnaris origin and insertions

A

humeral head - medial epicondyle -> pisiform
ulnar head - olecranon -> pisiform

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14
Q

flexor carpi ulnaris action

A

flexion of wrist
adduction of hand

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15
Q

flexor carpi ulnaris innervation

A

ulnar nerve

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16
Q

flexor digitorum superficialis insertion

A

inserts at distal 4 phalanges

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17
Q

flexor digitorum superficialis action

A

flexes proximal interphalangeal joints

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18
Q

flexor digitorum superficialis innervation

A

median nerve

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19
Q

flexor digitorum profundus origin and insertion

A

interosseous membrane -> medial 4 digits

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20
Q

flexor digitorum profundus action

A

flexes distal interphalangeal joints and others

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21
Q

flexor digitorum profundus innervation

A

splits
medial = ulnar nerve
lateral = medial nerve

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22
Q

flexor pollices longus origin and insertion

A

interosseous membrane -> thumb

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23
Q

flexor pollices longus action

A

flexion of distal and proximal phalanx of thumb

24
Q

flexor pollices longus innervation

A

median nerve

25
Q

supinator origin and insertion

A

lateral epicondyle -> radius

26
Q

supinator action

A

rotates radius to supinate forearm

27
Q

supinator innervation

A

radial nerve

28
Q

brachioradialis origin and insertion

A

humerus -> radius (styloid process)

29
Q

brachioradialis action

A

flexes forearm

30
Q

brachioradialis innervation

A

radial nerve

31
Q

extensor carpi radialis longus origin and insertion

A

lateral supracondylar ridge of humerus -> metacarpal 2

32
Q

extensor carpi radialis longus action

A

extension of hand
abduction of hand

33
Q

extensor carpi radialis longus innervation

A

radial nerve

34
Q

extensor carpi radialis brevis origin and insertion

A

lateral epicondyle -> 3rd metacarpal

35
Q

extensor carpi radialis brevis action

A

extension of hand
abduction of hand

36
Q

extensor carpi radialis brevis innervation

A

radial nerve

37
Q

extensor digitorum origin and insertion

A

lateral epicondyle -> medial 4 digits

38
Q

extensor digitorum action

A

extension of metacarpophalangeal and interphalangeal joints
wrist extension

39
Q

extensor digitorum innervation

A

radial nerve

40
Q

extensor digiti minimi origin and insertion

A

lateral epicondyle -> 5th digit

41
Q

extensor digiti minimi action

A

extension of 5th digit
wrist extension

42
Q

extensor digiti minimi innervation

A

radial nerve

43
Q

extensor carpi ulnaris origin and insertion

A

lateral epicondule/ulna -> base of 5th metacarpal

44
Q

extensor carpi ulnaris action

A

extension and adduction of wrist

45
Q

extensor carpi ulnaris innervation

A

radial nerve

46
Q

abductor pollicis longus origin and insertion

A

ulna/IM/radius -> 1st metacarpal

47
Q

abductor pollicis longus action

A

abducts thumb and wrist
extends thumb
laterally rotates thumb

48
Q

abductor pollicis longus innervation

A

radial nerve

49
Q

extensor pollicis longus origin and insertion

A

ulna/im -> distal phalanx = thumb

50
Q

extensor pollicis longus action

A

abduction of thumb
extends phalanx thumb

51
Q

extensor pollicis longus innervation

A

radial nerve

52
Q

extensor indicis origin and insertion

A

ulna/IM -> 2nd digit

53
Q

extensor indicis action

A

extends all joints of index finger

54
Q

extensor indicis innervation

A

radial nerve

55
Q

contents of cubital fossa

A
  • radial nerve
  • biceps tendon
  • brachial artery
  • median nerve
56
Q

nerve supply to anterior portion of arm

A

musculocutaneous nerve = passes through coracobrachialis

anatomy (15 decks)

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