Sertoli cells line the seminiferous tubules in the testes in males. These cells protect the spermatids and convey nutrients to both developing and mature spermatozoa. Sertoli cells are regulated by follicle-stimulating hormone (secreted by anterior pituitary), and release testosterone. Luteinising hormone is secreted by posterior pituitary and regulate corpus luteum and placenta, growth hormone regulates all the cells of the body and prolactin is secreted by anterior pituitary and regulates the milk production in mammary glands. Related Theory Spermiogenesis is the final stage of spermatogenesis, which includes the maturation of spermatids into mature, motile spermatozoa. The transformation of spermatid into sperms takes place in Sertoli cells. In females, FSH stimulates the release of oestrogen and progesterone.