The thyroid gland is a butterfly-shaped organ located in the base of your neck. It releases hormones that control metabolismââ¬âthe way your body uses energy. The thyroid's hormones regulate vital body functions, including: Breathing Heart rate Central and peripheral nervous systems Body weight Muscle strength Menstrual cycles Body temperature Cholesterol levels and much more. The thyroid gland is about 2-inches long and lies in front of your throat below the prominence of thyroid cartilage sometimes called the Adam's apple. The thyroid has two sides called lobes that lie on either side of your windpipe, and is usually connected by a strip of thyroid tissue known as an isthmus. Some people do not have an isthmus, and instead have two separate thyroid lobes.
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