★Pelvic diaphragm 。Superior fascia ● Muscles=Levator ani Coccygeus 。Inferior fascia The tendinous arch女 -----sup./inf fascia (splited -----the origin of levator ani IaG塔 Rectum Peritonoum Obturator tascia intenor and superior tascia of levator ani- Obturator internus -Lovator ani Inferior rectal Pudendal can vessels and nerve Ischionnal foss利 External anal of perineum sphincter ★ Pelvic diaphragm • Superior fascia • Muscles = Levator ani + Coccygeus • Inferior fascia The tendinous arch ★ -----sup./ inf fascia (splited ) ----- the origin of levator ani