Thyroid stimulating hormone (TSH)
This hormone is synthesized by anterior pituitary and it's release is stimulated by thyrotropin releasing hormone (TRH) from Hypothalamus.
Function
It is tropic hormone that stimulate normal development and secretory activity of thyroid gland.
It stimulates growth and activity of thyroid gland, which secret hormones; thyroxine (T4), , tri-iodothyronine (T3).
Regulation of Secretion
Secretion is regulated by negative feedback mechanism.
Rising blood level of thyroid hormone act on both pituitary and hypothalamus to inhibit TSH (thyroid stimulating hormone) secretion.
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