Which hormone stimulates ovarian follicle development and sperm production?

The correct answer is Follicle Stimulating Hormone (FSH) because it plays a crucial role in the reproductive system for both females and males. In females, FSH is responsible for stimulating the growth and maturation of ovarian follicles, which are essential for ovulation and the production of oocytes (eggs). In males, FSH supports spermatogenesis by acting on Sertoli cells in the testes, which are necessary for the production of sperm.

This dual action makes FSH a key hormone in regulating reproductive processes in both sexes, thus establishing its importance in follicular development in females and sperm production in males. Understanding the role of FSH reflects its significance in infertility treatments and reproductive health.