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2. HLTH 109 > Forearm, wrist and hand I > Flashcards

Forearm, wrist and hand I Flashcards

1
Q

list superficial forearm muscles: anterior com- flexors

A

Pass Fail Pass Fail

  • pronator teres
  • flexor carpi radialis
  • palmaris longus (PL)
  • flexor carpi ulnaris (FCU)
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2
Q

list intermediate forearm muscles: anterior com- flexors

A

flexor digitorum superficialis (FDS)

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3
Q

list deep forearm muscles: anterior com- flexors

A
  • flexor digitorum profundus (FDP)
  • flexor pollicis longus (FPL)
  • pronator quadratus
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4
Q

flexor carpi ulnaris: location

A

anterior forearm, superficial

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5
Q

flexor carpi ulnaris: origin

A
  • ulnar head: olecranon and post border of ulna

- humeral head: medial epicondyle

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6
Q

flexor carpi ulnaris: insertion

A
  • pisiform,
  • hammate
  • 5th metacarpal
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7
Q

flexor carpi ulnaris: innervation

A

ulnar nerve

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8
Q

flexor carpi ulnaris: action

A

flex, adduct the hand (at wrist)

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9
Q

palmaris longus: location

A

anterior forearm, superficial

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10
Q

palmaris longus: origin

A

medial epicondyle

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11
Q

palmaris longus: insertion

A

flexor retinculum, palmar aponeurosis

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12
Q

palmaris longus: innervation

A

median nerve

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13
Q

palmaris longus: action

A 
flex hand (at wrist) 
- tenses palmar aponeurosis
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14
Q

flexor carpi radialis: location

A

anterior forearm, superficial

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15
Q

flexor carpi radialis: origin

A

medial epicondyle

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16
Q

flexor carpi radialis: insertion

A

base 2nd metacarpal

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17
Q

flexor carpi radialis: innervation

A

median nerve

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18
Q

flexor carpi radialis: action

A

flex, abduct the hand (at the wrist)

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19
Q

pronator teres: location

A

anterior forearm, superficial

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20
Q

pronator teres: origin

A
  • ulnar head: coronoid process of ulna

- humeral head: medial epicondyle, supracondylar ridge

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21
Q

pronator teres: insertion

A

lateral surface of radius (mid shaft)

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22
Q

pronator teres: innervation

A

median nerve

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23
Q

pronator teres: action

A
  • pronates forearm (radioulnar joint)

- flex elbow

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24
Q

how to visualise the superficial anterior compartment muscles?

A

four fingers on forearm, PFPF

  • index: pronator teres
  • middle: flexor carpi radialis
  • ring: palmaris longus
  • pinky: flexor carpi ulnaris
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25
Q

flexor digitorum superficialis: location

A

anterior forearm, intermediate

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26
Q

flexor digitorum superficialis: origin

A
  • humero-ulnar head: medial epicondyle, margin of coronoid process
  • radial head: oblique line (anterior) border of radius
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27
Q

flexor digitorum superficialis: insertion

A

middle phalanges of:

  • index
  • middle
  • ring
  • pinky
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28
Q

flexor digitorum superficialis: innervation

A

median nerve

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29
Q

flexor digitorum superficialis: action

A

flexes proximal interphalangeal,

metacarpophalangeal joints

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30
Q

flexor digitorum profundus: location

A

anterior forearm, deep

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31
Q

flexor digitorum profundus: origin

A

anterior and medial surfaces of ulna and interosseous membrane

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32
Q

flexor digitorum profundus: insertion

A

base of distal phalanges:

  • index
  • middle
  • ring
  • pinky
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33
Q

flexor digitorum profundus: innervation

A

lateral half: median n (ant interosseous)

medial half: ulnar nerve

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34
Q

flexor digitorum profundus: action

A

flexes metacarpophalangeal, distal interphalangeal joints

- fingers 2-5

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35
Q

flexor pollicis longus: location

A

anterior forearm, deep

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36
Q

flexor pollicis longus: origin

A

anterior surface of radius

- interosseous membrane

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37
Q

flexor pollicis longus: insertion

A

base of distal phalanx of thumb

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38
Q

flexor pollicis longus: innervation

A

median n (anterior interosseous)

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39
Q

flexor pollicis longus: action

A

flexes metacarpophalangeal, interphalangeal joints of thumb

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40
Q

pronator quadratus: location

A

anterior forearm, deep

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41
Q

pronator quadratus: origin

A

distal anterior surface of ulna

42
Q

pronator quadratus: insertion

A

distal anterior surface of radius

43
Q

pronator quadratus: innervation

A

median n (anterior interosseous)

44
Q

pronator quadratus: action

A

pronates forearm

45
Q

list superficial forearm muscles, posterior com- extensor

A
  • brachioradialis
  • extensor carpi radialis longus (ECRL)
  • extensor carpi radialis brevis (ECRB)
  • extensor carpi ulnaris (ECU)
  • extensor digitorum (ED)
  • extensor digiti minimi (EDM)
  • anconeus
46
Q

list deep forearm muscles: post com- extensors

A
  • supinator
  • abductor pollicis longus (APL)
  • extensor pollicis brevis (EPB)
  • extensor pollicis longus (EPL)
  • extensor indicis (EI)
47
Q

brachioradialis: location

A

posterior forearm, superificial

48
Q

brachioradialis: origin

A
  • lateral supracondylar ridge of humerus,

- intermuscular septum

49
Q

brachioradialis: insertion

A

lateral distal end of radius

50
Q

brachioradialis: innervation

A

radial nerve

51
Q

brachioradialis: action

A

flexes elbow (when forearm midpronation)

52
Q

extensor carpi radialis longus: location

A

posterior forearm, superficial

53
Q

extensor carpi radialis longus: origin

A
  • lateral supracondylar ridge (humerus)

- intermuscular septum

54
Q

extensor carpi radialis longus: insertion

A

base metacarpal 2

55
Q

extensor carpi radialis longus: innervation

A

radial n

56
Q

extensor carpi radialis longus: action

A

extends, abduct the wrist

57
Q

extensor carpi radialis brevis: location

A

posterior forearm, superficial

58
Q

extensor carpi radialis brevis: origin

A
  • lateral epicondyle

- intermuscular septum

59
Q

extensor carpi radialis brevis: insertion

A

base metacarpals 2, 3

60
Q

extensor carpi radialis brevis: innervation

A

radial n

61
Q

extensor carpi radialis brevis: action

A

extends, abduct the wrist

62
Q

extensor digitorum: location

A

posterior forearm, superficial

63
Q

extensor digitorum: origin

A

lateral epicondyle, intermuscular septum

64
Q

extensor digitorum: insertion

A

base of middle, distal phalanges of medial 4 fingers

65
Q

extensor digitorum: innervation

A

posterior interosseous n (from d.b. of radial)

66
Q

extensor digitorum: action

A

extends wrist, and medial 4 fingers

67
Q

extensor digiti minimi: location

A

posterior forearm, superficial

68
Q

extensor digiti minimi: origin

A

lateral epicondyle, intermuscular septum

69
Q

extensor digiti minimi: insertion

A

distal end of pinky

70
Q

extensor digiti minimi: innervation

A

posterior interosseous n (from radial n)

71
Q

extensor digiti minimi: action

A

extends pinky

72
Q

extensor carpi ulnaris: location

A

posterior forearm, superficial

73
Q

extensor carpi ulnaris: origin

A

lateral epicondyle, post surface of ulna

74
Q

extensor carpi ulnaris: insertion

A

base of metacarpal 5

75
Q

extensor carpi ulnaris: innervation

A

posterior interosseous n (from radial)

76
Q

extensor carpi ulnaris: action

A

extends and adducts the wrist

77
Q

supinator: location

A

posterior forearm, deep

78
Q

supinator: origin

A

superficial head: - lateral epicondyle,

  • radial collateral lig
  • annular lig

deep head:
- supinator crest of ulna

79
Q

supinator: insertion

A

lateral surface of radius

- superior to oblique line

80
Q

supinator: innervation

A

posterior interosseous n

81
Q

supinator: action

A

supinates forearm at radioulnar joint

82
Q

abductor pollicis longus: location

A

posterior forearm, deep

83
Q

abductor pollicis longus: origin

A

post surface of ulna, radius, interosseous membrane

84
Q

abductor pollicis longus: insertion

A

base metacarpal 1

85
Q

abductor pollicis longus: innervation

A

posterior interosseous n

86
Q

abductor pollicis longus: action

A
  • abduct CMC joint of thumb

- extends thumb

87
Q

extensor pollicis brevis: location

A

posterior forearm, deep

88
Q

extensor pollicis brevis: origin

A

post surface of radius, interosseous membrane

89
Q

extensor pollicis brevis: insertion

A

base of proximal phalanx of thumb

90
Q

extensor pollicis brevis: innervation

A

post interosseous n

91
Q

extensor pollicis brevis: action

A

extends MCP and CMC joint of the thumb

92
Q

extensor pollicis longus: location

A

posterior forearm, deep

93
Q

extensor pollicis longus: origin

A

posterior surface of ulna, interosseous membrane

94
Q

extensor pollicis longus: insertion

A

base of distal phalanx of thumb

95
Q

extensor pollicis longus: innervation

A

posterior interosseous n

96
Q

extensor pollicis longus: action

A

extend all joints of the thumb

97
Q

extensor indicis: location

A

posterior forearm, deep

98
Q

extensor indicis: origin

A

posterior surface of ulna, interosseous membrane

99
Q

extensor indicis: insertion

A

base of proximal phalanx of index finger

100
Q

extensor indicis: innervation

A

posterior interosseous n

101
Q

extensor indicis: action

A

extends index finger

2. HLTH 109 (29 decks)

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