The ovary consists of the following two structures:
- The cortex
- is the outer layer that covers the egg. In this structure folliculogenesis takes place, this is the process by which a primordial follicle is recruited until it becomes an antral follicle, that is, containing a mature and fertile egg. This process depends on the hormonal changes that occur in the woman's menstrual cycle.
- The marrow
- is the tissue that forms the nucleus of the ovary. This structure is highly vascularized and has a large number of blood vessels and nerves. Its function is to provide the necessary nutrients from the bloodstream to the ovarian cortex.