Structure of the skeletal system
The main bones of the skeleton and their location are shown here:
Question
Which three bones are found in the arm?
Humerus
Radius
Ulna
Types of bone
Within the skeleton there are different kinds of bone. The type of bone determines the amount of movement.
| Type of bone | Example in body | Description |
| Long | Femur | Cylindrical in shape and found in the limbs. Their main function is to act as a lever. |
| Short | Carpals | Small and compact, often equal in length and width. These types of bone are designed for strength and weight bearing. |
| Type of bone | Long |
|---|---|
| Example in body | Femur |
| Description | Cylindrical in shape and found in the limbs. Their main function is to act as a lever. |
| Type of bone | Short |
|---|---|
| Example in body | Carpals |
| Description | Small and compact, often equal in length and width. These types of bone are designed for strength and weight bearing. |