<prompt> Vaginal sphincter is formed by all except -Internal urethral sphincterExternal urethral sphincterPubovaginalisBulbospongiosus  <response>: Urogenital sphincters in Females- Vaginal sphinctersBulbospongiosusSphincter urethrovaginalisExternal urethral sphincterPubovaginalis- Urinary sphinctersCompressor urethraeExternal urethral sphincterSphincter urethrovaginalisPubourethralis 