Now let's actually focus on the structure of that secondary follicle and let's take a look at the following diagram. So we have the secondary Ovarian follicle as shown. Now notice the actual secondary Oocide is found in the following region. 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?