Understanding the Human Body - The Endocrine System
Elaine Wood and Pamela Walker
Hardcover
(Lucent Books, Feb. 7, 2003)
The Endocrine System, made up of a diverse group of small, inconspicuous glands, regulates many body functions and is essential in maintaining a constant internal environment. Through chemical messengers called hormones, the endocrine system controls growth hundreds of vital functions such as body temperature, the use of digested food, reproduction.