Placenta Endocrine Function - Anatomy & Physiology

*Hormones of the Testes*
Hormone	Regulation	Action
Prostaglandin F2a	-	Causes luteolysis.
Progesterone	Sertoli Cells	GnRH from the Hypothalamus causes FSH secretion from the Pituitary Gland which stimulates the Sertoli Cells.	Prevents secretion of further FSH from the Pituitary Gland.
Oestrogen	Sertoli Cells	GnRH from the Hypothalamus causes FSH secretion from the Pituitary Gland which stimulates the Sertoli Cells.	Converted from testosterone, this hormone's function is complex. It may prevent apoptosis of male germ cells.
Equine Chorionic Gonadotropin (eCG)	Sertoli Cells	GnRH from the Hypothalamus causes FSH secretion from the Pituitary Gland which stimulates the Sertoli Cells.	Converted from testosterone, this hormone's function is complex. It may prevent apoptosis of male germ cells.
hCG	Sertoli Cells	GnRH from the Hypothalamus causes FSH secretion from the Pituitary Gland which stimulates the Sertoli Cells.	Converted from testosterone, this hormone's function is complex. It may prevent apoptosis of male germ cells.