NEET PG DENTAL EXAM

HEAD NECK

THYROID GLAND

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

How is the secretion of thyroid hormones controlled?

A	pancreas
B	liver
C	pituitary gland
D	thyroid gland

Explanation:

Detailed explanation-1: -Regulation of thyroid hormone starts at the hypothalamus. The hypothalamus releases thyrotropin-releasing hormone (TRH) into the hypothalamic-hypophyseal portal system to the anterior pituitary gland. TRH stimulates thyrotropin cells in the anterior pituitary to the release of thyroid-stimulating hormone (TSH).

Detailed explanation-2: -Your body controls your thyroid hormone (T3 and T4) levels through a complex feedback loop. Your hypothalamus releases thyrotropin-releasing hormone (TRH), which triggers your pituitary gland to release thyroid-stimulating hormone (TSH), which stimulates your thyroid to release T3 and T4.

Detailed explanation-3: -TSH is a peptide hormone produced by the anterior pituitary. It consists of two chains: an alpha chain and a beta chain. It has a molecular mass of approximately 28, 000 Da. The composition is very similar to other glycoprotein hormones made by the anterior pituitary.

There is 1 question to complete.