abnormal secondary ovarian follicle number decreased secondary ovarian follicle number 2011-05-20T11:39:46Z MP:0011129 MPheno.ontology csmith decreased Graafian follicle number decreased antral follicle number decreased folliculus ovaricus vesiculosus number decreased vesicular follicle number decreased vesicular ovarian follicle number fewer than normal numbers of the ovarian 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 while the theca of the follicle develops into internal and external layers reduced Graafian follicle number reduced antral follicle number reduced folliculus ovaricus vesiculosus number reduced secondary ovarian follicle number reduced vesicular follicle number reduced vesicular ovarian follicle number