OverviewThe thyroid gland, a part of the endocrine (hormone) system, plays a major role in regulating the body's metabolism.
Review Date 3/16/2016
Updated by: Todd Gersten, MD, hematology/oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.