Musculoskeletal System

Front

It is a living organ. It is made mostly of collagen, a protein that provides its soft framework.

Back

Bones

Front

Bones are classified according to the type of tissue:

Back

Cortical Bone
Cancellous Bone

Front

Also known as compact bone, the hard exterior that is strong and dense.

Back

Cortical Bone

Front

Also known as spongy bone, it makes up the inner layer of the bone. It contains the bone marrow where blood cells are produced.

Back

Cancellous Bone

Front

5 Types of Bones

Back

Flat Bones

Long Bones

Short Bones

Irregular Bones

Sesamoid Bones

Front

Like the skull, ribs, and pelvis, protect the internal organs such as the brain and the heart.

Back

Flat Bones

Front

Provides strength, structure, and mobility. Examples include the thigh bone, the humerus (the long bone in the arm), and the radius and the ulna (the bones in the forearm).

Back

Long Bones

Front

Provide stability and movement. Examples of these include the carpals (wrist bones) and the tarsals (ankle bones).

Back

Short Bones

Front

Have complex shapes that allow them to protect delicate internal organs.

Back

Irregular bones

Front

Small, round bones that are found in the tendons of the body. Example of this is the patella or kneecap.

Back

Sesamoid Bones