Hormonal control of spermatogenesis
Spermatogenesis is initiated at the age of puberty by the gonadotropin releasing hormone (GnRH) secreted by the hypothalamus.
The increased levels of GnRH stimulate the anterior pituitary which then secretes the FSH (follicle stimulating hormone) and LH (luteinising hormone). FSH stimulates Sertoli cells to secrete some factors which help in spermiogenesis.
LH acts on the Leydig cells and causes the secretion of testosterone from the testes.
Flow chart showing the hormonal control of the human male reproductive system
