So this diagram describes a cross section of the ovary. So this is one of the ovaries of that female individual that has reached puberty. So let's suppose this is the ovary. This is our attachment point to the uterus and this is our fallopian tube which acts as a passageway to carry that oicide, that ovum from the ovary into the uterus. And if fertilization takes place, we form the zygote. When the sperm cell combines with the ovum and that zygote is implanted onto the wall, onto the lining of the uterus known as the endometrium.