Secondary follicles

Definition

Secondary follicles are an advanced stage in the development of ovarian follicles, characterized by a fluid-filled space called an antrum that forms among the granulosa cells. These follicles are crucial for ovulation and the production of estrogen.

Related terms

Ovulation:

The phase in the menstrual cycle where a mature egg is released from the ovary into the fallopian tube for potential fertilization.

Granulosa cells: Specialized cells surrounding the developing oocyte in an ovarian follicle, playing a key role in its growth and hormone production.

Estrogen:

A primary female sex hormone responsible for regulating reproductive and sexual health, significantly produced by maturing ovarian follicles