The Human Body
Bone cells make hard tough bone tissue that supports and protects parts of the body. Nerve cells form nervous tissue in the brain and nerves. Different tissues form organs such as the heart and brain. And organs work together as a body system. There are 10 main body systems, each with a vital job that keeps the body healthy and working. For instance the respiratory system keeps us alive by ensuring that we breathe, while the reproductive system enables us to create new life. The book contains a wealth of colour diagrams and photographs accompanying explanations of how the body works at every level, from vital systems to structure and movement. It also contains sections on the story of how scientific understanding about the body developed and on how life begins.