What is the function of GnRH in males?

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Stimulates Leydig cells to secrete androgens

Stimulates the synthesis and secretion of FSH and LH

Acts on the central neural system and influence the libido

Promotes testicular descent into the scrotum during foetal stage

answer is B.

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Detailed Solution

GnRH stimulates the anterior pituitary gland to synthesise the gonadotropins (FSH and LH) in both males and females.

Leydig cells are influenced by LH.
Testosterone is responsible for male secondary sexual characteristics and libido.
Complete testicular descent is essential for normal testicular function in adult life. This process depends on the growth and reorganisation of gubernacula, regulated by hormones like insulin-like peptide 3 (INSL3) and testosterone. Proper testicular position in the scrotum is crucial for sperm production and reproductive health.

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