NEET PG DENTAL EXAM

EMBRYOLOGY

MALE SEX GLANDS TESTES AND SPERMATOGENESIS

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

What hormone is released by the anterior pituitary to stimulate division of spermatogonia?

A	gnRH
B	FSH
C	LH
D	testosterone

Explanation:

Detailed explanation-1: -GnRH stimulates FSH release. The hypothalamus produces GnRH, and it is released into the hypophyseal portal circulation to act on G-protein-coupled receptors at gonadotropic cells of the anterior pituitary.

Detailed explanation-2: -GnRH stimulates the pituitary gland to produce follicle stimulating hormone (FSH), the hormone responsible for starting follicle (egg) development and causing the level of estrogen, the primary female hormone, to rise.

Detailed explanation-3: -Gonadotrophin-releasing hormone (GnRH) is released from the hypothalamus and binds to receptors in the anterior pituitary gland to stimulate both the synthesis and release of follicle stimulating hormone (FSH) and luteinising hormone (LH).

Detailed explanation-4: -Follicle-stimulating hormone (FSH) is a glycoprotein gonadotropin secreted by the anterior pituitary in response to gonadotropin-releasing hormone (GnRH) released by the hypothalamus. The pituitary gland also secretes luteinizing hormone (LH), another gonadotropin. FSH and LH are composed of alpha and beta subunits.

There is 1 question to complete.