You and your body

Describes the different bones and muscles in the human body, giving their locations and functions.

Discusses the parts of the eye, how they function to produce the phenomenon of vision in humans and animals, and other aspects of the act of seeing.

Describes the workings of the human cardiopulmonary system.

Explains how your ears function to hear sounds, maintain balance, and measure distances.

Describes the brain, its parts, and functions, and discusses how it communicates with other parts of the body.