Obturator internus muscleIschio-anal fossaeAnterior recesses of ischio-anal fossaeSacrotuberous ligamentSacrospinous ligamentCoccygeus muscleAObturator internus muscleTendon of obturatorinternus muscleIschio-anal fossaeAnterior recesses of ischio-anal fossaeBObturator internus muscleAnterior recesses of ischio-anal fossaeLevator aniCDeep perineal pouchDeep perineal pouchPerineal membranePerineal membrane