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Fall 2014: Anatomy & Kinesiology > Week 8: Hand > Flashcards

Week 8: Hand Flashcards

1
Q

Actions (3) of ED?

A
  1. Extend finger 2-5 @ MCP
  2. Extend hand at wrist
  3. Extend PIP and DIP
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2
Q

Origin of ED?

A

lateral epicondyle of the humerus

via the common extensor tendon

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3
Q

Insertions (2) of ED?

A
  1. Base of each phalynx of digits 2-5

2. Dorsal expansion of 2-5

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4
Q

Innervation of ED?

A

Posterior interosseous N. (Part of Radial N.)

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5
Q

Actions (2) of EDM?

A
  1. Extends little finger at MCP, PIP an DIP

2. Extends hand at the wrist

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6
Q

Origin of EDM?

A

Lateral epicondyle of the humerus

via the common extensor tendon

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7
Q

Insertions (2) of EDM?

A
  1. Base of proximal phalynx of digit 5

2. Dorsal expansion of digit 5

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8
Q

Innervation of EDM?

A

Posterior interosseous N. (Part of Radial N.)

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9
Q

Actions (2) of APL?

A
  1. Abducts the thumb @ CMC

2. Extends thumb @ CMC

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10
Q

Origins (2) of APL?

A

Posterior ulna and radius

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11
Q

Insertion of APL?

A

1st metacarpal

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12
Q

Innervation of APL?

A

Posterior interosseous N. (Part of Radial N.)

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13
Q

Actions (2) of EPB?

A
  1. Extends the thumb @ the CMC & MCP

2. Abducts the thumb @ CMC

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14
Q

Origins (2) of EPB?

A
  1. Posterior radius

2. Interosseous membrane

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15
Q

Insertion of EPB?

A

base of the 1st proximal phalynx

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16
Q

Innervation of EPB?

A

Posterior interosseous N. (Part of Radial N.)

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17
Q

Action (1) of EPL?

A

Extends thumb @ CMC, MCP and IP joints

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18
Q

Origin (2) of EPL?

A
  1. Middle posterior 1/3 of ulna

2. Interosseous membrane

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19
Q

Insertion of EPL?

A

Base of 1st distal phalynx

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20
Q

Innervation of EPL?

A

Posterior interosseous N. (Part of Radial N.)

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21
Q

Action (1) of EI?

A

Extend 2nd phalange @ MCP, PIP, and DIP

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22
Q

Origin (2) of EI?

A
  1. Proximal part of the lower 1/3 of the ulna

2. interosseous membrane

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23
Q

insertions (2) of EI?

A
  1. Base of proximal phalynx on 2nd digit

2. Dorsal expansion of digit 2

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24
Q

Innervation of EI?

A

Posterior interosseous N. (Part of Radial N.)

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25
Q

Actions (2) of FDS?

A
  1. Flexes fingers 2-5 @
    MCP and PIP
  2. Flexes the hand at the wrist joint
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26
Q

Origin (3) of FDS?

A
  1. Medial epicondyle of humerus via common flexor tendon
  2. Coronoid process of the ulna
  3. Oblique line of the radius
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27
Q

Insertion of FDS?

A

Medial and lateral aspects of the middle phalynx of digits 2-5

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28
Q

Innervation of FDS?

A

Median N.

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29
Q

Actions (3) of FDP?

A
  1. Flexes fingers 2-5 @ DIP
  2. Assists with flexion @ PIP and MCP
  3. Flex hand @ wrist
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30
Q

Origins (2) of FDP?

A
  1. Proximal 2/3 of anterior surface of ulna

2. Interosseous membrane

31
Q

Insertion of FDP?

A

Base of distal phalanx of digits 2-5

32
Q

Innervation of FDP?

A

Median branch → Ulnar N. to medial FDP (3 and 4)

Radial branch → Median N. to lateral FDP (2 and 3)

33
Q

Actions (2) of FPL?

A
  1. Flex thumb @ CMC, MCP, and IP

2. Flex hand @ wrist

34
Q

Origins (3) of FPL?

A

Anterior surface of radius, ulna, and medial epicondyle

35
Q

Insertion of FPL?

A

Distal phalanx of thumb

36
Q

Innervation of FPL?

A

Anterior Interosseous N.

37
Q

Action of APB?

A

Abduct thumb @ CMC

38
Q

Origin (3) of APB?

A
  1. Flexor retinaculum
  2. Scaphoid
  3. Trapezium
39
Q

Insertion of APB?

A

Base of 1st PP, lateral aspect

40
Q

Innervation of APB?

A

Median N.

41
Q

Action of FPB?

A

Flex thumb @ CMC and MCP

42
Q

Origin (2) of FPB

A
  1. Flexor retinaculum

2. Trapezium

43
Q

Insertion of FPB?

A

Base of 1st PP, lateral aspect

44
Q

Innervation of FPB?

A

Median N.

45
Q

Action of OP?

A

oppose thumb @ CMC

46
Q

Origins (2) of OP?

A
  1. Flexor retinaculum

2. Trapezium

47
Q

Insertion of OP?

A

Lateral aspect of 1st metacarpal

48
Q

Innervation of OP?

A

Median N.

49
Q

Origin of ADM?

A

abduct 5th phalange @ MCP

50
Q

Origin of ADM?

A

pisiform

51
Q

Insertion of ADM?

A

medial aspect of 5th PP

52
Q

Innervation of ADM?

A

Ulnar N.

53
Q

Action of FDM?

A

Flex 5th phalange @ MCP

54
Q

Origins (2) of FDM?

A
  1. Flexor retinuaculum

2. Hamate

55
Q

Insertion of FDM?

A

Medial aspect of 5th phalanx

56
Q

Innervation of FDM?

A

Ulnar N

57
Q

Action of ODM?

A

opposes 5th phalange @ CMC1

58
Q

Origin (2) of ODM?

A
  1. Flexor retinuaculum

2. Hamate

59
Q

Insertion of ODM?

A

Medial border of 5th metacarpal

60
Q

Innervation of ODM?

A

Ulnar N.

61
Q

Which digits are used for dexterity and fine motor?

A

1 and 2

62
Q

Which digits are used for more strength and gross motor

A

3, 4, 5

63
Q

The base of the thumb attaches to which carpal bone?

A

trapezium

64
Q

which CMC joints allow for movement

A

4 and 5

65
Q

what kind of joint is the thumb?

A

saddle

66
Q

3 movements of the thumb joint

A

abduction/adduction
flexion/extension
opposition/reposition

67
Q

What two things meet at the MCP joint

A

head of the metacarpal and the proximal phalanx

68
Q

movements of the MCP joint

A

abduction/adduction

flexion/extension

69
Q

How is the MCP joint supported?

A

medial and lateral collateral ligaments

70
Q

What is the ligaments called that hold the volar plate of the MCP joints together with the nearby metacarpal

A

Deep Transverse Metacarpal Ligaments

71
Q

What do the extrinsic muscles of the hand move? Why?

A

Wrist

they originate on the humerus or FA and attach at the hand

72
Q

Functions (2) of the extrinsic muscles of the hand?

A

strength

gross motor

73
Q

Primary finger extensor muscle?

A

extensor digitorum

Fall 2014: Anatomy & Kinesiology (12 decks)

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