Endocrine (Glands and Hormones)

Endocrine System The endocrine system consists of specialized groups of cells called glands that make, store, and release regulating chemicals called hormones directly into the bloodstream to regulate how the body functions. Some of these endocrine glands include the adrenals, chemoreceptor organs, gonads (testis and ovary), hypothalamus, pancreatic islets, parathyroid, pineal, pituitary, and thyroid. These glands secrete hormones that travel through the circulatory system to regulate the various body systems. A few of these hormones include steroids, growth hormones, and thyroxine.

Click on a substance to go to the health effects chapter in the toxicological profile. Then, search on any target organ system to find the health effects information on that system.

Please Note: The following links point to PDFs containing the information defining the health effects of the selected substance. This PDF format requires Adobe Acrobat Reader external icon , which can be downloaded free from the Adobe web site.

Page last reviewed: March 03, 2011