Anatomy Episiotomy incision was extended posteriorly beyond perineal body injuring the structure immediately posterior to it. Which structure has been injured A External anal sphincter B Ischiocavernosus C Bulbospongiosus D Urethral sphincter 💡 Explanation Episiotomy incision was extended posteriorly beyond perineal body injuring the structure immediately posterior to it. Which structure has been injured ✓ Correct Answer: A. External anal sphincter