In men, what does Follicle-Stimulating Hormone (FSH) stimulate?

Follicle-Stimulating Hormone (FSH) plays a crucial role in male reproductive physiology. In men, FSH specifically stimulates spermatogenesis, which is the process of sperm cell development in the seminiferous tubules of the testes. By acting on Sertoli cells, FSH promotes the maturation of sperm cells and supports their production by enhancing the environment necessary for their development.

FSH does not stimulate the production of estrogen; that role is primarily associated with other hormones, primarily in females. Additionally, ovulation is a process specific to females, where a mature egg is released from the ovary, and it is not relevant in the context of male physiology. Finally, the production of progesterone is mainly related to the female reproductive system, primarily associated with the menstrual cycle and pregnancy. Therefore, the correct response directly relates to the function of FSH in facilitating the production of sperm in men.