obsolete primary ovarian follicle growth involved in primary follicle stage (obsolete GO:0043930)
primary ovarian follicle growth during primary follicle stage
related
OBSOLETE. Increase in size of primary follicles including oocyte growth and granulosa and/or theca cell proliferation until more than one layer of granulosa cells is present (preantral follicle) as part of the primary follicle stage of oogenesis.