We have the actual developing oicide the developing ex cell shown in red. We also have the nutritious fluid shown in green. And we have two different types of cells. The dark purple cells are the granolosis cells and the light purple cells are the Fegus cells and these two cells have different functions. Now the follicle stimulating hormone actually stimulates the differentiation and the proliferation of the granulosa cells while the luteinizing hormone stimulates differentiation and the proliferation of these FECA cells. And what these two cells do is they work together to form a hormone known as estrogen.