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MAT > Wrist and Hand > Flashcards

Wrist and Hand Flashcards

1
Q

Anterior Compartment

A

flexors and pronators
flexors originate on the medial epicondyle via common flexor tendon

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2
Q

Anterior Superficial Layer

A

Pronator Teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris

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3
Q

Anterior Intermediate Layer

A

flexor digitorum superficialis

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4
Q

Anterior Deep Layer

A

flexor digitorum profundus
flexor policis longus
pronator quadratus

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5
Q

Pronator Teres Origin

A

distal part of the medial supracondylar ridge of the humerus and medial side of the proximal ulna

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6
Q

Pronator Teres Insertion

A

Middle 1/3 of lateral radius

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7
Q

Pronator Teres Action

A

forearm pronation
elbow flexion

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8
Q

Pronator Teres Innervation

A

Median Nerve

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9
Q

Flexor Carpi Radialis Origin

A

Medial Epicondyle

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10
Q

Flexor Carpi Radialis Insertion

A

anterior base of the 2nd and 3rd metacarpals

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11
Q

Flexor Carpi Radialis Action

A

wrist flexion, radial deviation
elbow flexion
forearm pronation

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12
Q

Flexor Carpi Radialis Innervation

A

Median Nerve

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13
Q

Palmaris Longus Origin

A

Medial Epicondyle

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14
Q

Palmaris Longus Insertion

A

Palmar aponeurosis of the 2-5th metacarpals

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15
Q

Palmaris Longus action

A

Wrist and elbow flexion

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16
Q

Palmaris Longus Innervation

A

Median Nerve

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17
Q

Flexor carpi Ulnaris Origin

A

Medial Epicondyle

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18
Q

Flexor Carpi Ulnaris Insertion

A

pisiform, hamate, and base of the 5th metacarpal

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19
Q

Flexor Carpi Ulnaris Action

A

wrist flexion, ulnar deviation
elbow flexion

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20
Q

Flexor Carpi Ulnaris Innervation

A

Ulnar Nerve

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21
Q

Flexor digitorum Superficialis Origin

A

Medial Epicondyle

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22
Q

Flexor Digitorum Superficialis Insertion

A

muscle splits into separate tendons. each attach to the sides of middle phalanx of the 4 digits

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23
Q

Flexor Digitorum Superficialis Action

A

MCP 2-5 flexion
PIP 2-5 flexion
wrist flexion
elbow flexion

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24
Q

Flexor Digitorum Superficialis Innervation

A

Median Nerve

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25
Q

Flexor Digitorum Profundus Origin

A

Proximal 3/4 of the anterior and medial ulna

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26
Q

Flexor Digitorum Profundus Insertion

A

Base of the distal phalanxes of 4 fingers

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27
Q

Flexor Digitorum Profundus Action

A

MCP 2-5 flexion
PIP 2-5 flexion
DIP 2-5 flexion
wrist flexion
only one to flex DIPs ( fun dip)

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28
Q

Flexor Digitorum Profundus Innervation

A

2-3 Median Nerve
4-5 Ulnar nerve

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29
Q

Flexor Pollicus Longus Origin

A

Middle anterior radius and anterior border of the ulna just distal to coronoid process

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30
Q

Flexor Pollicus Longus Insertion

A

Base of the 1st distal phalanx

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31
Q

Flexor Pollicus Longus Action

A

CMC 1st flexion
MCP 1st flexion
IP 1st flexion
wrist flexion
wrist radial deviation

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32
Q

Flexor Pollicus Longus Innervation

A

Median Nerve

33
Q

Posterior Compartment

A

extensor muscles
originate on the lateral epicondyle via common extensor tendon

34
Q

Posterior Superficial Layer

A

Brachioradialis
Extensor Carpi Radialis Longus (ECRL)
Extensor Carpi Radialis Brevis (ECRB)
Extensor Digitorum
Extensor Digiti Minimi
Extensor Carpi Ulnaris

35
Q

Posterior Deep Layer

A

Supinator
Extensor Indicis

36
Q

Brachioradialis Origin

A

Distal 2/3 of the lateral supracondylar ridge of the humerus

37
Q

Brachioradialis Insertion

A

lateral surface of the distal end of the radius at the styloid process

38
Q

Brachioradialis Action

A

elbow flexion
forearm pronation from supination to neutral
forearm supination from pronated position to neutral

39
Q

Brachioradialis Innervation

A

Radial Nerve

40
Q

Extensor Carpi Radialis Longus (ECRL) Origin

A

Lateral Epicondyle

41
Q

ECRL Insertion

A

Base of the 2nd Metacarpal

42
Q

ECRL Action

A

wrist extension
radial deviation
elbow flexion
forearm pronation: full supination to neutral

43
Q

ECRL Innervation

A

Radial Nerve

44
Q

ECRB Origin

A

Lateral Epicondule

45
Q

ECRB Insertion

A

Base of 3rd metacarpal

46
Q

ECRB Action

A

Wrist extension
radial deviation
elbow flexion

47
Q

ECRB Innervation

A

Radial Nerve

48
Q

Extensor Digitorum Origin

A

Lateral Epicondyle

49
Q

Extensor Digitorum Insertion

A

4 tendons that go to the base of the middle and distal 2-5 phalanx

50
Q

Extensor Digitorum Action

A

MCP 2-5 Extension
wrist extension
elbow extension

51
Q

Extensor Digitorum Innervation

A

Radial Nerve

52
Q

Extensor Digiti Minimi Origin

A

Lateral Epicondyle

53
Q

Extensor Digiti Minimi Insertion

A

Base of the 5th middle and distal phalanxes

54
Q

Extensor Digiti Minimi Action

A

MCP 5th extension
wrist extension
elbow extension

55
Q

Extensor Digiti Minimi Innervation

A

Radial Nerve

56
Q

Extensor Carpi Ulnaris Origin

A

Lateral Epicondyle

57
Q

Extensor Carpi Ulnaris Insertion

A

Base of the 5th metacarpal

58
Q

Extensor Carpi Ulnaris Action

A

wrist extension
ulnar deviation
elbow extension

59
Q

Extensor Carpi Ulnaris Innervation

A

Radial Nerve

60
Q

Supinator Origin

A

Lateral epicondyle of the humerus and posterior ulna

61
Q

Supinator Insertion

A

lateral surface of the proximal radius

62
Q

Supinator Action

A

forearm supination

63
Q

Supinator Innervation

A

posterior interosseous nerve
(from radial nerve)

64
Q

Extensor Indicis Origin

A

between middle and distal 1/3 of posterior ulna

65
Q

Extensor Indicis Insertion

A

Base of middle and distal 2nd phalanxes

66
Q

Extensor Indicis Action

A

MCP 2nd extension
wrist extension
forearm supination from a pronated position

67
Q

Extensor Indicis Innervation

A

Radial Nerve

68
Q

Abductor Policis Longus (APL) Origin

A

Posterior aspect of radius and midshaft ulna

69
Q

APL Insertion

A

base of 1st metacarpal

70
Q

APL Action

A

CMC 1st abduction
radial deviation
CMC 1st extension
forearm supination from pronated postion
wrist extension

71
Q

APL Innervation

A

Radial Nerve

72
Q

Extensor Pollicis Lingus (EPL) Origin

A

Posterior lateral surface of lower middle ulna

73
Q

EPL Insertion

A

base of 1st distal phalanx

74
Q

EPL Action

A

CMC 1st extension
MCP 1st extension
IP 1st extension
wrist extension
radial deviation
forearm supination from pronated position

75
Q

EPL Innervation

A

Radial Nerve

76
Q

Extensor Pollicis Brevis (EPB) Origin

A

Posterior surface of lower middle radius

77
Q

EPB Insertion

A

base of 1st proximal phalanz

78
Q

EPB Action

A

CMC 1st extension
MCP 1st extension
radial deviation
wrist extension

79
Q

EPB Innervation

A

Radial Nerve

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