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Thyroid Gland: Difference between revisions
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==Function== | ==Function== | ||
The thyroid hormones T3 and T4 have a number of metabolic, cardiovascular and developmental effects on the body. The production is stimulated by release of thyroid stimulating hormone (TSH), which in turn depends on release of thyrotropin releasing hormone (TRH). Every downstream hormone has negative feedback and decreases the level of the hormone that stimulates its release. The thyroid gland also produces the hormone calcitonin, which helps regulate blood calcium levels. | The thyroid hormones T3 and T4 have a number of metabolic, cardiovascular and developmental effects on the body. The production is stimulated by release of thyroid stimulating hormone (TSH), which in turn depends on release of thyrotropin releasing hormone (TRH). Every downstream hormone has negative feedback and decreases the level of the hormone that stimulates its release. The thyroid gland also produces the hormone calcitonin, which helps regulate blood calcium levels. About 20,000 protein-coding genes are expressed in human cells: 70% of these genes are expressed in thyroid cells. | ||
== Thyroid hormones== | == Thyroid hormones== | ||