Sacrotuberous ligament
Sciatic nerve
Pudendal nerve
Internal pudendal artery
Nerve to obturator internus
Sacrospinous ligament
Sacrotuberous ligament
Post. cutaneous n. of thigh
Sciatic nerve
Inferior rectal nerves
Pudendal nerve
Inferior rectal artery
Internal pudendal artery
External anal sphincter
Obturator fascia(removed)
Obturator internus
Pudendal nerve
Internal pudendal artery