Know Your Body

The heart carries oxygen-rich blood to our cells every second of our lives, and we don't even have to do much to keep this muscular organ moving. Incredibly, it only takes about 60 seconds to pump blood to every cell in the entire body! This fun fact and many more are found in this informative volume. Readers will learn about the different chambers of the heart, the path of blood through it, and how it works with blood vessels. Supportive illustrations, vivid photographs, and essential vocabulary make this a must-read introduction to the circulatory system.

The amazing brain can send signals to body parts at a speed of 200 miles (322 km) per hour! That comes in handy when someone is in danger or needs to move fast. Readers will appreciate the mysterious, fascinating organ in their skull known as the brain as they learn about the five main parts of the brain and their special functions. They'll also find out what they can do to keep their brain working well. Simple illustrations and bright photographs make this volume a fun and informative introduction to the nervous system.

We need oxygen every moment of our lives, yet we don't even need to think about breathing! The brain makes sure our lungs keep working, whether we're aware of it or not. In this informative volume, readers will follow the path of a breath of air, both in and out of the lungs. Along the way, they'll learn biology vocabulary and the importance of body parts working together to provide the body with life-giving oxygen and rid it of carbon dioxide. Simple illustrations and photographs further elucidate this beginner's guide to the respiratory system.

We rarely think about our stomachs until we feel hunger pangs or a stomachache. But every time we put something in our mouth and swallow, our stomach gets to work performing vital tasks to provide our body with the energy and nutrition it needs. This volume is the perfect doorway to the human digestive system. Readers will learn the basic mechanics of digestion as well as other entertaining facts through thoughtful text, colorful diagrams, and supporting photographs.

We don't often think about it, but we'd be a pile of skin and other organs without our bones. This helpful guide to the human skeleton presents readers with a key body system. They will be acquainted with groups of bones such as the spine and skull and learn what they need to do to keep their bones healthy. Carefully chosen photographs and illustrations support the accessible text, which is a valuable introduction to several key biology concepts.

We don't often think about it, but we'd be a pile of skin and other organs without our bones. This helpful guide to the human skeleton presents readers with a key body system. They will be acquainted with groups of bones such as the spine and skull and learn what they need to do to keep their bones healthy. Carefully chosen photographs and illustrations support the accessible text, which is a valuable introduction to several key biology concepts.

The amazing brain can send signals to body parts at a speed of 200 miles per hour. That comes in handy when someone is in danger or needs to move fast. Readers will appreciate the mysterious, fascinating organ in their skull known as the brain as they learn about the five main parts of the brain and their special functions. They'll also find out what they can do to keep their brain working well. Simple illustrations and bright photographs make this volume a fun and informative introduction to the nervous system.

All our movements depend on our amazing muscles. In this lively volume, readers will discover how the three kinds of muscles-skeletal, cardiac, and smooth-work in collaboration with their other body parts to keep them moving. They'll learn what extraordinary machines the human body's more than 600 muscles are as well as how to keep them healthy and toned. Accessible text and supporting diagrams and photographs make this book a valuable tool in addressing an important topic of the elementary science curriculum.