<prompt> Which of the following is not a sphincter in the female urogenital tract -PubovaginalisExternal urethral sphincterInternal urethral sphincterBulbospongiosus  <response>: Urogenital sphincters in Females- Vaginal sphinctersBulbospongiosusSphincter urethrovaginalisExternal urethral sphincterPubovaginalis- Urinary sphinctersCompressor urethraeExternal urethral sphincterSphincter urethrovaginalisPubourethralis 