part of develops from genital chamber female-specific anatomical entity vagina 2022-01-18T14:02:31Z fly_anatomy.ontology bursa Posterior part of the genital chamber (McQueen et al., 2022). It is an ectodermal invagination where insemination takes place (McQueen et al., 2022). It extends from the posterior edge of the uterine specialized intima anteriorly to the vulva posteriorly (McQueen et al., 2022). FBbt:00052061 multicellular structure presumptive vagina