Dorsal median postcervical fold in the canine vagina.
D000818:Animals; D002584:Cervix Uteri / Q000033:anatomy & histology*; D004285:Dogs / Q000033:anatomy & histology*; D004971:Estrus; D005260:Female; D009092:Mucous Membrane / Q000033:anatomy & histology; D011247:Pregnancy; D014621:Vagina / Q000033:anatomy & histology*; D014730:Veterinary Medicine / Q000295:instrumentation