====== PELVIC MUSCLES ======


  * perineum 
     * Urethra 
       * urine flow 
          * pubococcygeus 
       * constricts 
         * superficial transverse perinei 
         * deep transverse perineal muscle
         * sphincter urethrae membranaceae
       * empties urethra 
         * bulbospongiosus ( men) 
     * Vagina
       * clenches vagina 
          * bulbospongiosus ( women)
       * constriction 
          * superficial transverse perinei 
          * deep transverse perineal muscle
     * supports pelvic organs 
       * iliococcygeus 
     * Anal canal
       * inhibits defecation 
          * puborectalis 
       * closure 
         * sphincter ani externus and internus