[Sertoli cell secretion]

The article deals with the secretion of Sertoli cells. Different substances they secrete and their role in the testis are described. These cells release a number of factors in their environment, thus creating a local "milieu" and exerting a local control of spermatogenesis in the seminiferous tubules. As target cells for FSH and testosterone, Sertoli cells are also included in a systemic control of spermatogenesis, and because of that, they are necessary for the normal function of the male sex gland.