And in this lecture we're going to discuss the first two processes of embryological development. We're going to focus on cleavage as well as blaster. But first, let's begin by taking a look at the following diagram that describes the structure of the female reproductive system. So we have the ovary, we have the fallopian tube and we have the uterus. Now what happens inside the ovary? Well, inside the ovary we have the development of that oocide.