Antrum

Definition

In the context of the ovarian reproductive system, an antrum is a fluid-filled cavity that forms within an ovarian follicle as it matures. This structure plays a crucial role in the development and release of an egg during the menstrual cycle.

Related terms

Ovarian Follicle: A fluid-filled sac in the ovary that contains and supports a developing egg.

Ovulation:

The process by which a mature ovarian follicle releases an egg into the fallopian tube for potential fertilization.

Follicular Phase:

The first half of the menstrual cycle, during which follicles in the ovary grow and one becomes dominant, culminating in ovulation