A compound secreted by the thyroid gland containing iodine. Thyroid hormones increase the rate of the metabolism, regulate body temperature, protein, fat and carbohydrate catabolism, control secretion of growth hormone, the maturation of the skeleton, cardiac rate, force and output, stimulate enzyme synthesis and are necessary for muscle tone and vigor.
A hormone containing iodine that affects the body's metabolism. It exists in two forms, levothyroxine (T4) and triiodothyronine (T3).
hormone produced by the thyroid gland that acts on energy metabolism (heart rate, body temperature, and burning of food). Hypothyroidism is common in women and can easily be treated with a small daily pill containing T4.
Chemical substance produced by the thyroid gland and released into the bloodstream. It interacts with almost all body cells, causing them to increase their metabolic activity. Two forms of thyroid hormone, abbreviated as T3 and T4, are found in blood.
a collective term for a group of hormones which are secreted by the thyroid gland. It includes thyroxine and triiodothyronine.
Present in two forms, T3 and T4 and produced in the thyroid. Most of the circulating hormone is T4 which is then converted to T3 inside the target cell. This hormone has little growth factor by itself, but helps to regulate, synthesize and promote the action of growth hormone.
Collective name for the two major hormones produced by the thyroid gland, thyroxine (T4) and triiodothyronine (T3).
any of several closely related compounds that are produced by the thyroid gland and are active metabolically
The thyroid gland makes T3 (triiodothyronine) and T4 (thyroxine), which together are considered thyroid hormone. T3 and T4 have identical effects on cells. Thyroid hormone affects heart rate, blood pressure, body temperature, and weight. T3 and T4 are stored as thyroglobulin, which can be converted back into T3 and T4.
(THY-royd HOR-mone) A hormone that affects heart rate, blood pressure, body temperature, and weight. Thyroid hormone is made by the thyroid gland and can also be made in the laboratory.
A chemical substance made by the thyroid gland for export into the bloodstream. The thyroid gland needs iodine to make thyroid hormones. The two most important thyroid hormones are thyroxine (T4) and triiodothyronine (T3). See the entire definition of Thyroid hormone
Thyroxine; a naturally occurring or synthetic hormone that helps control the body's metabolism; produced by the thyroid gland.
Thyroxine (T4); important in metabolism.
The thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are tyrosine-based hormones produced by the thyroid gland. An important component in the synthesis is iodine. The major form of thyroid hormone in the blood is thyroxine (T4).