Definition: A small, butterfly-shaped organ, located in the neck below and in front of the Adam's apple, which manufactures thyroid hormone and releases it into the bloodstream. It is under the control of the pituitary gland in the brain.
Thyroid Gland
By Nancy Schimelpfening, About.com Guide
Updated August 30, 2011
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
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