It's actually a small component of this entire follicle because around that cell we have other components. We have these green cells which are known as granulosa cells and we have these orange cells known as the Thicka cells and we also have this fluid found inside. Now, what exactly is the function of the granulosa cells and our FECA cells? Well, it turns out that the FECA cells are stimulated by a hormone produced in our body known as the luteinizing hormone LH. And what the luteinizing hormone does is it stimulates the FECA cells to basically transform cholesterol into androgens. And then these androgens are released into the grainylosis cells and the follicle stimulating hormone also produced inside our body stimulates these granolosis cells, the green cells to transform androgen by using a special type of enzyme into a type of sex steroid hormone known as estrogen.