All the following are false about houston's valve except:
The transverse folds of rectum (or Houston's valves) are semi-lunar transverse folds of the rectal wall that protrude into the rectum, not the anal canal as that lies below the rectum. CHOICE EXPLANATION & ELIMINATION REASON 1 False statement. Prominent on distension 2 False statement. Contains only circular muscles 3 True statement.Placed transversely 4 False statement. Middle valve constant and fold towards left side