Learn about the basic organization of the body's organs and the major organ system.

What is the muscular system? Learn how muscles work, the different types of muscles, and how exercising effects muscles.

Learn about the three types of muscle tissue, how a muscle contracts, and how muscles are adapted for exercise. [3:40]

The anatomy of the musculoskeletal system and what the bones, muscles and joints do in our bodies are explained. Interactive diagrams show the internal structure of a bone, and how muscles and joints work together. Major disorders of the...