This program deconstructs the human skeletal and muscular systems, two interdependent assemblies that endow the body with structure and movement. Beginning with an introductory overview, the video identifies the body’s bones by dividing the skeleton into its axial and appendicular components, analyzes bone composition, describes the process of bone repair, and categorizes bone and joint types. The program then shifts focus to the skeletal muscular system—a detailed study of muscle cells, fibers, bundles, and connective tissue. The ATP-fueled process of muscle contraction is addressed as well. A viewable/printable instructor’s guide is available online. A Films for the Humanities & Sciences Production. A part of the series The Human Body: How It Works. (22 minutes)