<prompt> Lower 13 of vagina is formed by:Mesonephric ductParamesonephric ductSinovaginal bulbsGenital swellings  <response>: Ans. C. Sinovaginal bulbsUpper 23 of vagina- formed by Paramesonephric DuctLower 13 of vagina - formed by Urogenital Sinus Sinovaginal Bulb of Endodermal Sinus 