Colorful graphics, engaging text, and fun, close-up photographs invite young readers to become familiar with their muscular system. In this book, readers will learn about the three types of muscle - skeletal muscle, smooth muscle, and cardiac muscle - and how they work to support and move their body. Simple diagrams highlight major parts of the muscular system. Also described are the structure of muscles and how they work with other systems, such as the nervous and skeletal systems, to move the body. In addition, readers will learn about nutrition, exercise, and safety to keep their muscular system healthy. Features include a table of contents, fun facts, diagrams, health tips, a glossary with phonetics, and an index. Buddy Books is an imprint of ABDO Publishing Group.