Types of Bones

Short Bones

These are cube-like in appearance, being as long as they are wide. They provide limited gliding motion and primarily serve as shock absorbers. Example: Carpals and tarsals

Irregular Bones

These are irregular in shape. The many protrusions on an irregular bone serve to function as a site for muscle attachment. Example: The Vertebrae

Sesamoid Bone

These are small bones that are usually embedded within tendons. They function to protect the tendon from friction as it rubs against bony surfaces. Example: The Patella

Flat Bones

These are thin bones that function to protect the tissues and organs of the body. Flat bones also provide a large area for the attachment of muscles and tendons. Example: Skull/Cranium, which protects the brain, the Sternum, which protects the heart, and the Ribs, which protect the lungs.

Long Bones

These bones are longer than they are wide. Long bones are used for movement. Muscles pull on long bones and cause them to move. Example: Femur, tibia, humerus, ulna, radius, phalanges and fibula