This in-depth coverage of the human body aims to provide a substantial and relevant library resource for students studying biology topics. Each book in the series looks at the basic structure of a system or set of organs, its function, its role in the health of the individual and its relationships with other organs and systems. The books in the series contain information on how the system can be affected and/or damaged by substances such as drugs and by physical injuries, and have an emphasis on the issue of keeping healthy and focus on sport science and how injuries and illness can affect teenagers.