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Select the correct statement with respect to Gonadotropin Release hormone
1. Secreted from the anterior pituitary gland
2. It is a hypothalamic hormone
3.GnRH promotes the spermatogenesis process.
4. It stimulates the synthesis and secretion of androgens.
Option: 1
3 and 4
Option: 2
1 and 2
Option: 3
1 and 3
Option: 4
2 and 3
Answers (1)
As we have discussed in Hormonal Control of Spermatogenesis -
- Spermatogenesis starts at the age of puberty due to a significant increase in the secretion of gonadotropin-releasing hormone (GnRH).
- This is a hypothalamic hormone.
- The increased levels of GnRH then act at the anterior pituitary gland and stimulate secretion of two gonadotropins – luteinising hormone (LH) and follicle-stimulating hormone (FSH).
- LH acts at the Leydig cells and stimulates synthesis and secretion of androgens.
- Androgens, in turn, stimulate the process of spermatogenesis.
- FSH acts on the Sertoli cells and stimulates the secretion of some factors which help in the process of spermiogenesis.
Hence, the correct option is (d).
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