Human Body (Gareth Stevens Publishing)

Inside this guidebook to the muscular system, readers will learn about the different kinds of muscles and how they function. From your eyes to your toes, muscles help you get things done every day. They help you grab, lift, push, pull, swing, and twist. The muscular system is made up of three different kinds of muscles. Many muscles move by thinking about the movement. Others work constantly without us thinking about them, and these muscles help keep us alive. Easy-to-follow, scientific text is paired with colorful photographs and diagrams to help readers learn about the muscular system.

The digestive system takes the food we put into our mouths and breaks it down into the most elemental parts. Our bodies use these nutrients to fuel life processes. The digestive system also eliminates waste products from our bodies. Readers will view this system through illustrative diagrams. They will also learn about nutrition and the importance of maintaining a healthy digestive system.

The nervous system is powered by a supercomputer inside the body called the brain. It processes information taken in by the senses and tells the body how to react. It also stores a lifetime of memories. This amazing organ is capable of accomplishing numerous complex tasks all at once. Together, the brain, spinal column, and nerves make up the nervous system, which make all activities such as eating, sleeping, running, laughing, and even remembering possible. Incredible diagrams and colorful photographs help readers understand the human nervous system.

Your skeleton is the framework of your body. Bones provide protection, but they do much more than that. They also produce blood cells and even act as storehouses for minerals the body may need in the future. This guidebook to the human skeletal system includes information about diseases, disorders, and injuries, and discusses how to keep your bones healthy. Numerous photographs and informative diagrams help readers understand the human body and provide a remarkable look at the skeletal system.

Your heart pumps blood constantly through 60,000 miles of blood vessels. Together, the heart, blood, and blood vessels make up the circulatory system. This system delivers oxygen from your lungs to the cells and organs of your body, and helps remove waste products. Readers explore the circulatory system with the aid of numerous photographs and revealing illustrations. This volume also includes information about disorders and diseases of the circulatory system, as well as tips on how to keep the system healthy.

Your respiratory system is working with each breath in and out. But it's more complex than just breathing. The information inside this book covers the structure and function of the respiratory system, as well as the importance of maintaining healthy lungs. The air that enters our lungs when we breathe in contains oxygen, which our bodies need to help turn food into energy. When we breathe out, carbon dioxide is removed from the body. Colorful photographs and in-depth diagrams display how this essential life process functions ceaselessly each day.