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