Skip to Content
Medical Term:

vesicular ovarian follicle


Definition: a follicle in which the primary oocyte attains its full size and is surrounded by an extracellular glycoprotein layer (zona pellucida) that separates it from a peripheral layer of follicular cells permeated by one or more fluid-filled antra; the primary oocyte occupies the cumulus oophorus; the theca of the follicle develops into internal and external layers.

Synonym(s): folliculus ovaricus vesiculosusTA, antral follicle, graafian follicle, secondary ovarian follicle, vesicular follicle

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.