human_reference_atlas cell cell type (from CL) epithelial cell secretory cell cumulus cell cumulus granulosa cell BTO:0002236 MESH:D054885 cumulus granulosa cell Cumulus cell is a specialized granulosa cell that surrounds and nourishes the oocyte. This cell-type surrounds the fully-grown oocyte to form a cumulus-oocyte complex (abbr. COC). The terms cumulus oophorus cells, cumulus granulosa cells, cumulus oophorous granulosa cells, granulosa-cumulus cells are used to make a distinction between this cell and the other functionally different subpopulation of granulosa cells at the wall of the Graafian follicle. CL:0000711 CT Homo sapiens ovary ovarian follicle cumulus oophorus mature ovarian follicle granulosa cell layer ovarian cortex antral follicle central inferior antimesenteric ovary central inferior mesenteric ovary central inferior ovary central ovary central superior antimesenteric ovary central superior mesenteric ovary central superior ovary corona radiata cumulus oophorus oocyte complex dominance antral follicle early antral follicle lateral inferior antimesenteric ovary lateral inferior mesenteric ovary lateral inferior ovary lateral ovary lateral superior antimesenteric ovary lateral superior mesenteric ovary lateral superior ovary medial inferior antimesenteric ovary medial inferior mesenteric ovary medial inferior ovary medial ovary medial superior antimesenteric ovary medial superior mesenteric ovary medial superior ovary pre-selection antral follicle selection antral follicle