The cortical cords begin to break up into isolated cell
clusters. The cords surround the primitive germ cells,
forming ovarian follicles.
The follicles replicate through mitosis, producing millions
of copies. However, by the time of birth, many of the
follicles will have degenerated, leaving about two million.
These remaining follicles will enlarge to form the primitive
eggs cells. No new egg cells will be produced after birth.
