obsolete follicular fluid formation in ovarian follicle antrum involved in fused antrum stage (obsolete GO:0003003)
follicular fluid formation in ovarian follicle antrum during fused antrum stage
related
OBSOLETE. The ovulation cycle process in which one central cavity separating the oocyte/cumulus complex from mural granulosa and theca cells is formed as part of the fused antrum stage of oogenesis.