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Thursday 5/28: Hand > Thursday 5/28: Hand > Flashcards

Thursday 5/28: Hand Flashcards

1
Q

Insertion of abductor pollicis brevis

A

Thumb (base of proximal phalanx)

via the radial sesamoid

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2
Q

Innervation of abductor pollicis brevis

A

Median nerve

C8,T1

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3
Q

Action of abductor pollicis brevis

A

Carpometacarpal (CMC) joint of thumb: abduction

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4
Q

Origin of flexor pollicis brevis (superficial head)

A

flexor retinaculum

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5
Q

Origin of flexor pollicis brevis (deep head)

A

Capitate bone, trapezium

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6
Q

Insertion of flexor pollicis brevis

A

Thumb (bas of proximal phalanx)

via the radial sesamoid

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7
Q

Innervation of flexor pollicis brevis (superficial head)

A

median nerve

C8,T1

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8
Q

Innervation of flexor pollicis brevis (deep head)

A

ulnar nerve

C8,T1

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9
Q

Action of flexor pollicis brevis

A

CMC joint of thumb: flexion

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10
Q

Origin of opponens pollicis

A

Trapezium

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11
Q

Insertion of opponens pollicis

A

First metacarpal (radial border)

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12
Q

Innervation of opponens pollicis

A

Median nerve

C8,T1

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13
Q

Action of opponens pollicis

A

CMC joint of thumb: opposition

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14
Q

Origin of abductor digiti minimi

A

Pisiform bone

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15
Q

Insertion of abductor digiti minimi

A

5th proximal phalanx (ulnar base) and dorsal digital expansion of 5th digit

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16
Q

Innervation of abductor digiti minimi

A

Ulnar nerve (C8,T1)

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17
Q

Action of abductor digiti minimi

A 
Metacarpophalangeal (MCP) joint of little finger: flexion and abduction of little finger
Proximal interphalangeal (PIP) and distal interphalangeal (DIP) of little finger: extension
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18
Q

Origin of flexor digiti minimi brevis

A

Hook of hamate, flexor retinaculum

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19
Q

Insertion of flexor digiti minimi brevis

A

5th proximal phalanx (base)

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20
Q

Innervation of flexor digiti minimi brevis

A

Ulnar nerve (C8, T1)

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21
Q

Action of flexor digiti minimi brevis

A

MCP joint of little finger: flexion

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22
Q

Origin of opponens digiti minimi

A

Hook of hamate, flexor retinaculum

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23
Q

Insertion of opponens digiti minimi

A

5th metacarpal (ulnar border)

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24
Q

Innervation of opponens digiti minimi

A

Ulnar nerve (C8,T1)

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25
Q

Action of opponens digiti minimi

A

Draws metacarpal in palmar direction (oppositon)

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26
Q

Origin of lumbricals (1st)

A

Tendons of flexor digitorum profundus (radial sides)

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27
Q

Inserton of lumbricals (1st)

A

2nd digit dorsal digital expansion (dde)

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28
Q

Innervation of lumbrical (1st)

A

Median nerve (C8,T1)

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29
Q

Action of lumbrical (1st)

A

2nd to 5th digits:
MCP joints: flexion
Proximal and distal interphalangeal (IP) joints: extension

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30
Q

Origin of lumbricals (2nd)

A

Tendons of flexor digitorum profundus (radial sides)

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31
Q

Insertion of lumbricals (2nd)

A

3rd digit (dde)

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32
Q

Innervation of lumbrical (2nd)

A

Median nerve (C8,T1)

33
Q

Action of lumbricals (2nd)

A

2nd to 5th digits:
MCP joints: flexion
Proximal and distal IP joints: extension

34
Q

Origin of lumbrical (3rd)

A

Tendons of flexor digitorum profundus (bipennate from medial and lateral sides)

35
Q

Insertion of lumbrical (3rd)

A

4th digit (dde)

36
Q

Innervation of lumbrical (3rd)

A

Ulnar nerve (C8,T1)

37
Q

Action of lumbrical (3rd)

A

2nd to 5th digits:
MCP joints: flexion
Proximal and distal IP joints: extension

38
Q

Origin of lumbrical (4th)

A

Tendons of flexor digitorum profundus (bipennate from medial and lateral sides)

39
Q

Insertion of lumbrical (4th)

A

5th digit (dde)

40
Q

Innervation of lumbrical (4th)

A

Ulnar nerve (C8,T1)

41
Q

Action of lumbrical (4th)

A

2nd to 5th digits:
MCP joints: flexion
Proximal and distal IP joints: extension

42
Q

Origin of dorsal interossei (1st)

A

1st and 2nd metacarpals (adjacent sides, two heads)

43
Q

Insertion of dorsal interossei (1st)

A 
2nd digit (dde)
2nd proximal phalanx (radial side)
44
Q

Innervation of dorsal interossei (1st)

A

Ulnar nerve (C8,T1)

45
Q

Action of dorsal interossei (1st)

A

2nd to 4th digits:
MCP joints: flexion
Proximal and distal IP joints: extension and abduction from 3rd digit

46
Q

Origin of interossei (2nd)

A

2nd and 3rd metacarpals (adjacent sides, two heads)

47
Q

Insertion of dorsal interossei (2nd)

A 
3rd digit (dde)
3rd proximal phalanx (radial side)
48
Q

Innervation of dorsal interossei (2nd)

A

Ulnar nerve (C8,T1)

49
Q

Action of dorsal interossei (2nd)

A

2nd to 4th digits:
MCP joints: flexion
Proximal and distal IP joints: extension and abduction from 3rd digit

50
Q

Origin of dorsal interossei (3rd)

A

3rd and 4th metacarpals (adjacent sides, two heads)

51
Q

Insertion of dorsal interossei (3rd)

A 
3rd digit (dde) 
3rd proximal phalanx (ulnar side)
52
Q

Innervation of dorsal interossei (3rd)

A

Ulnar nerve (C8,T1)

53
Q

Action of dorsal interossei (3rd)

A

2nd to 4th digits:
MCP joints: flexion
Proximal and distal IP joints: extension and abduction from 3rd digit

54
Q

Origin of dorsal interossei (4th)

A

4th and 5th metacarpals (adjacent sides, two heads)

55
Q

Insertion of dorsal interossei (4th)

A 
4th digit (dde)
4th proximal phalanx (ulnar side)
56
Q

Innervation of dorsal interossei (4th)

A

Ulnar nerve (C8,T1)

57
Q

Action of dorsal interossei (4th)

A

2nd to 4th digits:
MCP joints: flexion
Proximal and distal IP joints: extension and abduction from 3rd digit

58
Q

Origin of palmar interossei (1st)

A

2nd metacarpal (ulnar side)

59
Q

Insertion of palmar interossei (1st)

A 
2nd digit (dde) 
2nd proximal phalanx (base)
60
Q

Innervation of palmar interossei (1st)

A

Ulnar nerve (C8,T1)

61
Q

Action of palmar interossei (1st)

A

2nd, 4th, and 5th digits:
MCP joints: flexion
Proximal and distal IP joints: extension and adduction toward 3rd digit

62
Q

Origin of palmar interossei (2nd)

A

4th metacarpal (radial side)

63
Q

Insertion of palmar interossei (2nd)

A 
4th digit (dde)
4th proximal phalanx (base)
64
Q

Innervation of palmar interossei (2nd)

A

Ulnar nerve (C8,T1)

65
Q

Action of palmar interossei (2nd)

A

2nd, 4th, and 5th digits:
MCP joints: flexion
Proximal and distal IP joints: extension and adduction toward 3rd digit

66
Q

Origin of palmar interossei (3rd)

A

5th metacarpal (radial side)

67
Q

Insertion of palmar interossei (3rd)

A 
5th digit (dde)
5th proximal phalanx (base)
68
Q

Innervation of palmar interossei (3rd)

A

Ulnar nerve (C8,T1)

69
Q

Action of palmar interossei (3rd)

A

2nd, 4th, and 5th digits:
MCP joints: flexion
Proximal and distal IP joints: extension and adduction toward 3rd digit

70
Q

Origin of abductor pollicis brevis

A

Scaphoid bone and trapezium, flexor retinaculum

71
Q

origin of adductor pollicis (transverse head)

A

3rd metacarpal (palmar surface)

72
Q

insertion of adductor pollicis (transverse head)

A

thumb (base of proximal phalanx) via the ulnar sesmoid

73
Q

innervation of adductor pollicis (transverse)

A

ulnar nerve c8-t1

74
Q

action of adductor pollicis

A

CMC joint of thumb: adduction, MCP joint of thumb: flexion

75
Q

origin of adductor pollicis (oblique head)

A

capitate bone, 2nd and 3rd metacarpals (bases)

76
Q

insertion of adductor pollicis (oblique head)

A

thumb (base of proximal phalanx) via the radial sesamoid

77
Q

innervation of adductor pollicis (oblique head )

A

ulnar nerve c8-t1

78
Q

action of adductor pollicis (oblique head)

A

CMC joint of thumb: adduction, MCP joint of thumb: flexion

Thursday 5/28: Hand (1 decks)

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