Skeletal System

The skeleton and Anatomical terms

LATERAL MEDIAL LATERAL SUPERIOR PROXIMAL DISTAL INFERIOR

Types of Bones Long bones. Short bones Flat bones Irregular bones.

1. Long bones Found in limbs (legs, arms) Serve as levers for movement. Greater length than width. Mostly compact bone.

2. Short bones Very strong but have less movement (carpal and tarsal bones or foot) Nearly equal in length and width. Mostly spongy bone with an outer of compact bone.

3. Flat bones Usually thin. Two layers of compact bone covering a thin layer of spongy bone. Provide protection and a large area for muscle attachment. E.G. Cranium, sternum and ribs.

4. Irregular bones Mainly provide protection and support. E.G. Pubis and vertebrae.

Structure of a long bone.

Name the following bones !!