Gynaecology & Obstetrics General 2433bdd8 All of the following muscles contribute to urogenital sphincter complex except A Compressor urethrae B Sphincter urethrae C Urethrovaginal sphincter D Bladder base detrusor muscle High-Yield Explanation Urogenital sphincter is composed of striated muscles: Sphincter urethrae Urethrovaginal sphincter Compressor urethrae.