3.5.2. The Bones of the Hand

Question 1

What is the function of the Bones of the Hand?

Answer 1

Provide Support and Flexibility to the Soft Tissue within the Hand

Question 2

How many Categories of Bones of the Hand are there?

Answer 2

3

Question 3

What are the 3 Categories of the Bones of the Hand?

Answer 3

1. Carpal Bones
2. Metacarpals
3. Phalanges

Question 4

How many Carpal Bones are there?

Answer 4

8

Question 5

Where are the Carpal Bones located?

Answer 5

These are the Proximal-most Bones of the Hand

Question 6

What is the Significance of the 8 Carpal Bones?

Answer 6

They are Irregularly Shaped

Question 7

How many Rows of Carpal Bones are there?

Answer 7

2

Question 8

What are the 2 Rows of Carpal Bones?

Answer 8

1. Proximal Row of Carpal Bones
2. Distal Row of Carpal Bones

Question 9

What are the Bones of the Proximal Row of Carpal Bones? (Lateral to Medial)

Answer 9

1. Scaphoid
2. Lunate
3. Triquetrum
4. Pisiform

Question 10

What is the Significance of the Pisiform Bone?

Answer 10

This is a Sesamoid Bone, formed within the Tendon of the Flexor Carpi Ulnaris

Question 11

What are the Bones of the Distal Row of Carpal Bones? (Lateral to Medial)

Answer 11

1. Trapezium
2. Trapezoid
3. Capitate
4. Hamate

Question 12

What is the Significance of the Hamate Bone?

Answer 12

It has a Projection on its Palmar Surface, known as the Hook of Hamate

Question 13

Which 2 Carpal Bones Articulates with the Radius and Articular Disk, to form the Radiocarpal Joint?

Answer 13

1. Scaphoid
2. Lunate

Question 14

Which of the Distal Row of Carpal Bones, Articulates with Metacarpals?

Answer 14

All of them:
1. Trapezium
2. Trapezoid
3. Capitate
4. Hamate

Question 15

What do the Metacarpals Articulate with Proximally?

Answer 15

The Distal Row of Carpal Bones

Question 16

What do the Metacarpals Articulate with Distally?

Answer 16

Proximal Phalanges

Question 17

How are the Metacarpals Named?

Answer 17

They are Numbered in Association with each Digit:
1. Metacarpal I - Thumb
2. Metacarpal II - Index Finger
3. Metacarpal III - Middle Finger
4. Metacarpal IV - Ring Finger
5. Metacarpal V - Little Finger

Question 18

Which Bone does Metacarpal I, Articulate with Proximally?

Answer 18

Trapezium

Question 19

Which Bone does Metacarpal II, Articulate with Proximally?

Answer 19

Trapezoid

Question 20

Which Bone does Metacarpal III, Articulate with Proximally?

Answer 20

Capitate

Question 21

Which Bone does Metacarpal IV, Articulate with Proximally?

Answer 21

Hamate

Question 22

Which Bone does Metacarpal V, Articulate with Proximally?

Answer 22

Hamate

Question 23

What are the 3 main parts of the Metacarpals?

Answer 23

1. Base
2. Shaft
3. Head

Question 24

1. What shape are the Medial and Lateral Surfaces of the Metacarpals?
2. Why?

Answer 24

1. Concave
2. To Allow for the Attachment of Interossei Muscles

Question 25

Where are the Phalanges located?

Answer 25

In the Fingers

Question 26

1. How many Phalanges does the Thumb have? 2. What are they?

Answer 26

1. 2 2. a) Proximal Phalanx 2. b) Distal Phalanx Note - Phalanx is Singular for Phalanges

Question 27

1. How many Phalanges do the Digits have? 2. What are they?

Answer 27

1. 3 2. a) Proximal Phalanx 2. b) Middle Phalanx 2. c) Distal Phalanx