Learning About the Human Body Systems

The endocrine system is essential to human life. It enables a person to grow, respond to change and stress, and helps turn food into energy. The reproductive system has one crucial task: that of making the next generation of people. Readers learn how these two remarkable systems work together to ensure survival of the human race.

In an informative and easy-to-understand look at the respiratory system, the author discusses what this body system is and what organs are involved in its various processes. She discusses the potential health problems that can affect the respiratory system, such as cancer, pneumonia, and emphysema, as well as ways to keep healthy and problem-free. Little-known facts about the respiratory system are also included.

The nervous system is made up of the brain, the spinal cord and nerves. It is responsible for telling the heart to beat, the lungs to breathe, and the muscles to move. The brain, the central command center, processes everything from understanding a teacher's instructions to enjoying a piece of chocolate cake. Readers will discover more about how this remarkable system controls virtually every part of the human body.

Bone and muscles join forces to move us from one place to another. The musculoskeletal system controls our breathing, allows our eyes to focus, and shapes our smiles. It enables us to talk and to eat. Our strong bones support our weight. Skin wraps our body in a tough layer of tissue that keeps moisture in and germs out. Readers find out how this marvelous system works and learn some amazing facts about muscles, bones and skin.

The circulatory system runs through the body carrying oxygen and nutrients to our cells and removes waste. It's driven by the never-resting heart, which pumps blood through more than 60,000 miles of arteries and veins. The lymphatic system regulates the amount of liquid in the body among other tasks. Readers will learn about how together, these two systems help the body stay alive and fight invading bacteria and viruses.

Author Susan Dudley Gold delves into the functions of the digestive and excretory systems. She explains why these systems are discussed together, how they work, and ways to keep healthy. Fascinating tidbits about these systems add an interesting twist.