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प्रश्न
Explain the process of hormonal regulation of spermatogenesis.
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उत्तर
- 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 the secretion of two gonadotropins luteinising hormone (LH) and follicle-stimulating hormone (FSH).
- LH acts at the Leydig cells and stimulates the 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.
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संबंधित प्रश्न
Give the names and functions of the hormones involved in the process of spermatogenesis. Write the names of the endocrine glands from where they are released.
Identify the correct option (A), (B), (C), (D) with respect to spermatogenesis.
Spermatogenesis involves two major events. What is the second major event?
What is the chromosome count of a primary spermatocyte?
What is the chromosome count of a secondary spermatocyte?
How many haploid spermatids are produced from one primary spermatocyte?
During which phase of spermatogenesis do primordial germ cells undergo repeated mitotic divisions?
What are Type B spermatogonia also called?
How many secondary spermatocytes are produced from one primary spermatocyte during Meiosis I?
Which phase of spermatogenesis involves DNA replication in preparation for meiosis?
