Hardie, Jackie

Describes various bones, joints, and muscles; examines the functions of tendons, cartilage, and ligaments; and explains how bones and muscles work together to allow movement of the body.

Describes the different parts of the body's breathing system, how they work, and how they are affected by pollution, smoking, and asthma.

Describes the heart and blood and their functions, also discussing blood types, pacemakers, the immune system, and ways to keep your heart healthy.