Week 8: Hand Flashcards Preview

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

Flashcards in Week 8: Hand Deck (73):
1

Actions (3) of ED?

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

2

Origin of ED?

lateral epicondyle of the humerus
via the common extensor tendon

3

Insertions (2) of ED?

1. Base of each phalynx of digits 2-5
2. Dorsal expansion of 2-5

4

Innervation of ED?

Posterior interosseous N. (Part of Radial N.)

5

Actions (2) of EDM?

1. Extends little finger at MCP, PIP an DIP
2. Extends hand at the wrist

6

Origin of EDM?

Lateral epicondyle of the humerus
via the common extensor tendon

7

Insertions (2) of EDM?

1. Base of proximal phalynx of digit 5
2. Dorsal expansion of digit 5

8

Innervation of EDM?

Posterior interosseous N. (Part of Radial N.)

9

Actions (2) of APL?

1. Abducts the thumb @ CMC
2. Extends thumb @ CMC

10

Origins (2) of APL?

Posterior ulna and radius

11

Insertion of APL?

1st metacarpal

12

Innervation of APL?

Posterior interosseous N. (Part of Radial N.)

13

Actions (2) of EPB?

1. Extends the thumb @ the CMC & MCP
2. Abducts the thumb @ CMC

14

Origins (2) of EPB?

1. Posterior radius
2. Interosseous membrane

15

Insertion of EPB?

base of the 1st proximal phalynx

16

Innervation of EPB?

Posterior interosseous N. (Part of Radial N.)

17

Action (1) of EPL?

Extends thumb @ CMC, MCP and IP joints

18

Origin (2) of EPL?

1. Middle posterior 1/3 of ulna
2. Interosseous membrane

19

Insertion of EPL?

Base of 1st distal phalynx

20

Innervation of EPL?

Posterior interosseous N. (Part of Radial N.)

21

Action (1) of EI?

Extend 2nd phalange @ MCP, PIP, and DIP

22

Origin (2) of EI?

1. Proximal part of the lower 1/3 of the ulna
2. interosseous membrane

23

insertions (2) of EI?

1. Base of proximal phalynx on 2nd digit
2. Dorsal expansion of digit 2

24

Innervation of EI?

Posterior interosseous N. (Part of Radial N.)

25

Actions (2) of FDS?

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

26

Origin (3) of FDS?

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

27

Insertion of FDS?

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

28

Innervation of FDS?

Median N.

29

Actions (3) of FDP?

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

30

Origins (2) of FDP?

1. Proximal 2/3 of anterior surface of ulna
2. Interosseous membrane

31

Insertion of FDP?

Base of distal phalanx of digits 2-5

32

Innervation of FDP?

Median branch → Ulnar N. to medial FDP (3 and 4)
Radial branch → Median N. to lateral FDP (2 and 3)

33

Actions (2) of FPL?

1. Flex thumb @ CMC, MCP, and IP
2. Flex hand @ wrist

34

Origins (3) of FPL?

Anterior surface of radius, ulna, and medial epicondyle

35

Insertion of FPL?

Distal phalanx of thumb

36

Innervation of FPL?

Anterior Interosseous N.

37

Action of APB?

Abduct thumb @ CMC

38

Origin (3) of APB?

1. Flexor retinaculum
2. Scaphoid
3. Trapezium

39

Insertion of APB?

Base of 1st PP, lateral aspect

40

Innervation of APB?

Median N.

41

Action of FPB?

Flex thumb @ CMC and MCP

42

Origin (2) of FPB

1. Flexor retinaculum
2. Trapezium

43

Insertion of FPB?

Base of 1st PP, lateral aspect

44

Innervation of FPB?

Median N.

45

Action of OP?

oppose thumb @ CMC

46

Origins (2) of OP?

1. Flexor retinaculum
2. Trapezium

47

Insertion of OP?

Lateral aspect of 1st metacarpal

48

Innervation of OP?

Median N.

49

Origin of ADM?

abduct 5th phalange @ MCP

50

Origin of ADM?

pisiform

51

Insertion of ADM?

medial aspect of 5th PP

52

Innervation of ADM?

Ulnar N.

53

Action of FDM?

Flex 5th phalange @ MCP

54

Origins (2) of FDM?

1. Flexor retinuaculum
2. Hamate

55

Insertion of FDM?

Medial aspect of 5th phalanx

56

Innervation of FDM?

Ulnar N

57

Action of ODM?

opposes 5th phalange @ CMC1

58

Origin (2) of ODM?

1. Flexor retinuaculum
2. Hamate

59

Insertion of ODM?

Medial border of 5th metacarpal

60

Innervation of ODM?

Ulnar N.

61

Which digits are used for dexterity and fine motor?

1 and 2

62

Which digits are used for more strength and gross motor

3, 4, 5

63

The base of the thumb attaches to which carpal bone?

trapezium

64

which CMC joints allow for movement

4 and 5

65

what kind of joint is the thumb?

saddle

66

3 movements of the thumb joint

abduction/adduction
flexion/extension
opposition/reposition

67

What two things meet at the MCP joint

head of the metacarpal and the proximal phalanx

68

movements of the MCP joint

abduction/adduction
flexion/extension

69

How is the MCP joint supported?

medial and lateral collateral ligaments

70

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

Deep Transverse Metacarpal Ligaments

71

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

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

72

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

strength
gross motor

73

Primary finger extensor muscle?

extensor digitorum