Bone by Bone: Comparing Animal Skeletons

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 ...

Heart, lungs, kidneys, stomach—all these organs keep our bodies working, but what really goes on inside them? This book explores beneath the surface to find out how our organs work.

The digestive system is made up of the tongue, the esophagus, the stomach, the intestines, and other parts. But what does the digestive system do? And how do its parts work together to keep your body healthy? Explore the digestive system in this eng...

The nervous system is made up of the brain, the nerves, and the spinal cord. But what does the nervous system do? And how do its parts work together to help your body function? Explore the nervous system in this engaging and informative book.

The circulatory system is made up of the heart, the blood, and strong tubes called blood vessels. But what does the circulatory system do? And how do its parts work together to keep your body healthy? Explore the circulatory system in this engaging ...

The muscular system is made up of three different kinds of muscles: skeletal muscles, smooth muscle, and heart muscle. But what does each kind of muscle do? And where in the body are they located? Explore the muscular system in this engaging and inf...

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.

How do our eyes and ears work? What do our noses do? This book explores the anatomy of the human head. From hair and skin down to muscle and bone, find out how each part works, and how it is all controlled by our amazing brain.

Compare different types of scales and discover how they protect the bodies of fish and reptiles.