What included by primordial follicle?

A primordial follicle consists of an immature oocyte (egg cell) surrounded by a single layer of flattened granulosa cells. This structure is the earliest stage in the development of ovarian follicles in females and serves as a reserve pool of oocytes. Primordial follicles are found in the ovaries and remain in a dormant state until they are activated for growth during the menstrual cycle or reproductive phases.