Britannica Educational Publishing 
Endocrine System [PDF ebook] 

The endocrine system, comprised of a number of hormone-secreting glands, is vital to the functioning of the human body. In addition to its role in reproductive activity, the endocrine system regulates tissue growth, responses to injury and stress, and helps maintain necessary levels of chemicals throughout the body. This detailed volume carefully examines the major glands of the endocrine system as well as the consequences of its dysfunction and disorder.