Homework Help: Health: Physical Fitness: Definition of Bones

Believe it or not, bones are living organs. They contain many cells that make new bone or replace old bone. Bones also contain several minerals.

Sizes

The smallest bones in your body are the three bones in your ear. The largest bones in your body are your thighbones, also known as femurs.

Shapes

Even human bones come in the oddest shapes. Most bones are cylindrical with rounded ends while other bones are short, flat, or irregularly shaped.

Homework Help: Health: Physical Fitness

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