There are three different kinds of muscles that all help our bodies function. They are the skeletal muscles, smooth muscles, and cardiac muscles. Within this fun and fact-filled volume, readers learn about each kind of muscle, how it works, and where muscles are located in the body. The engaging narrative presents this essential science curriculum topic in an easy-to-understand and entertaining way as Dr. Seymour Skinless takes readers under the skin to venture through the muscular system. Additional features include informative fact boxes and diagrams, a detailed glossary, charming illustrations, and vibrant, full-color photographs of the muscular system in action.