4.4. Joints and Movement of the Hand Flashcards Preview

3rd Year - MSK Upper Limb Anatomy > 4.4. Joints and Movement of the Hand > Flashcards

Flashcards in 4.4. Joints and Movement of the Hand Deck (21)
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1
Q

How many Broad Categories of Joints are there in the Hand?

A

2

2
Q

What are the Broad Categories of Joints in the Hand?

A
  1. Metacarpophalangeal Joints

2. Interphalangeal Joints

3
Q

What are the Metacarpophalangeal Joints also known as?

A

Knuckles

4
Q

What type of Joints is the Metacarpophalangeal Joint?

A

Synovial Condyloid Joint

5
Q

What does the Metacarpopharangeal Joint connect?

A
  1. Metacarpal Bones

2. Proximal Phalanx of each of the 5 Digits

6
Q

How many Sub-Categories of Interphalangeal Joints are there?

A

2

7
Q

What are the Sub-Categories of the Interphalangeal Joints?

A
  1. Proximal Interphalangeal Joints

2. Distal Interphalangeal Joints

8
Q
  1. Which Digit(s) contain both Proximal and Distal Interphalangeal Joints?
  2. Which Digit(s) only contain 1 Interphalangeal Joint?
A
  1. Digits 2 - 5 (The 4 Fingers)

2. Digit 1 (The Thumb)

9
Q

What does the Proximal Interphalangeal Joint connect?

A
  1. Proximal Phalanx of Digits 2 - 5

2. Intermediate Phalanx of Digits 2 - 5

10
Q

What does the Distal Interphalangeal Joint connect?

A
  1. Intermediate Phalanx of Digits 2 - 5

2. Distal Phalanx of Digits 2 - 5

11
Q

What type of Joints are the Interphalangeal Joints?

A

Synovial Hinge Joints

12
Q

What are the 6 movements which the Hand can perform?

A
  1. Flexion of the Digits
  2. Extension of the Digits
  3. Abduction of the Digits
  4. Adduction of the Digits
  5. Opposition of the Thumb and Little Finger
  6. Reposition of the Thumb and Little Finger
13
Q

At which Joints can Flexion of the Digits occur?

A
  1. Metacarpophalangeal Joints
  2. Proximal Interphalangeal Joints
  3. Distal Interphalangeal Joints
14
Q

What happens to the Hand as Flexion of the Digits occurs?

A

This forms a Fist

15
Q

At which Joints can Extension of the Digits occur?

A
  1. Metacarpophalangeal Joints
  2. Proximal Interphalangeal Joints
  3. Distal Interphalangeal Joints
16
Q

What happens to the Hand as Extension of the Digits occurs?

A

This Stretches the Hand out Straight

17
Q

What happens to the Hand as Abduction of the Digits occurs?

A

The Fingers move Away from the Midline

18
Q

What happens to the Hand as Adduction of the Digits occurs?

A

The Fingers move Towards the Midline

19
Q

What is the Midline of the Hand?

A

The 3rd Digit (Middle Finger)

20
Q

What happens to the Hand as Opposition of the Thumb and Little Finger occurs?

A

The Thumb and Little Finger are Brought Together

21
Q

What happens to the Hand as Reposition of the Thumb and Little Finger occurs?

A

The Thumb and Little Finger are Moved Away from Each Other

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