Without muscles we would not be able to move. Muscles keep our digestive system working too, and our heart is a large muscle that works all the time. This book looks at how muscles, tendons and nerves all work together to help us move every part of our body.

Bones are the framework of our bodies, but they are much more than that. This book looks at the functions of bones: what they are made of, how they connect to muscles, and how joints work.