Explain the thyroid stimulating hormone (tsh), Science

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Explain the Thyroid Stimulating Hormone (TSH):

TSH, also known as thyrotropin is a glycoprotein and synthesized by thyrotroph cells of the anterior pituitary gland. Its functions are many and are listed as follows. The TSH:

Stimulates the secretion of thyroxine (T₄) and tri-iodothyronine (T₃) from the thyroid gland
Increases the number and size of thyroid cells, and
Controls general metabolism of the body through its activity on thyroid.

The thyroid gland becomes inactive and secretes almost no hormone when the anterior pituitary gland fails to secrete TSH.

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