Now, what about our follicle stimulating hormone and what about the surtoli cells? Well, the surtoli cells are these cells shown here. Now, once the follicle stimulating hormone is released into our bloodstream, it travels to the capillaries of this region and it causes these surtoli cells to basically provide the nutrients needed to our sperm cells for them to actually develop into mature sperm cells. So in males, the follicle stimulating hormone stimulates the surtole cells to provide nutrients to the developing sperm cells. Now, as time progresses, what our surtole cells can do is they can basically release a glycoprotein hormone into our surrounding area, into our bloodstream known as Inhibit. And what Inhibit does is it goes into our bloodstream and it travels to our interior pituitary gland and it basically inhibits via a negative feedback loop, it inhibits the release of our follicle stimulating hormone from the interior pituitary gland.