Endocrine System
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See also: Effect on Endocrine System ; Endocrine Diseases & Disorders
The endocrine system consists of several glands located throughout the body. These glands secrete hormones -- chemical messengers that signal the body to perform essential functions, usually related to growth and metabolism.
There are two types of glands within the endocrine system.
Endocrine glands include the pancreas, thyroid, pituitary, and adrenal glands. They secrete their hormones directly into the bloodstream, where they are carried to the site of action.
Exocrine glands secrete their hormones directly into ducts. Examples of exocrine glands include sebaceous, mammary, salivary and digestive glands.
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