Vaginal sphincter is formed by all except -
Urogenital sphincters in Females
-        Vaginal sphincters

Bulbospongiosus
Sphincter urethrovaginalis
External urethral sphincter
Pubovaginalis

-        Urinary sphincters

Compressor urethrae
External urethral sphincter
Sphincter urethrovaginalis
Pubourethralis
Internal urethral sphincter
External urethral sphincter
Pubovaginalis
Bulbospongiosus