part_of part of part of contained in develops from produced by oocyte egg PMID:27330085 CL:0000023 A female germ cell that has entered meiosis. PMID:28812561 https://orcid.org/0000-0003-2569-1939 | https://orcid.org/0000-0002-7535-4407 Planarian_Anatomy PMID:28434803 female gamete PMID:25278423 PMID:27501047 PMID:27163480 PMID:28072387 ovum PMID:27149082 PMID:27304889 gamete anterior region of the whole animal ventral region of the whole animal ovary female germ cell oogonial cell prepharyngeal region