The thyroid gland, a part of the endocrine (hormone ) system, plays a major role in regulating the body's metabolism.
Reviewed last on: 7/22/2008
Shimul A. Shah, MD, Assistant Professor of Surgery, University of Massachusetts Medical School, Worcester, MA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.