In this resource, students learn the major role of the muscular system, about muscle fibers, the role of ATP and calcium in muscle contraction, how muscles move bones, and how muscles respond to aerobic and anaerobic exercise.

Review the structure and function of the human body's muscular system.

A very solid Berkeley site on the structure and function of bird flight. Topics include skeletal and muscular adaptations for flight.

Equipped for a subterranean life, the Southeastern Pocket Gopher's muscular front legs, thick-set front body, massive claws on its front feet, small eyes and ears, and incisors protruding beyond the lips are obvious adaptations to life...

Practice autoimmune disorders of the muscle.