Anatomy Which of the following statements about ‘Valves of Houston’ is true – A The middle valve corresponds to the middle convex fold to the Right B The upper valve corresponds to peritoneal reflections C The valves contain all three layers of muscle wall D Valves disappear after mobilization of Rectum. 💡 Explanation Which of the following statements about 'Valves of Houston' is true - ✓ Correct Answer: D. Valves disappear after mobilization of Rectum.