Surgery All of the following statements about the embryology of Meckel’s diveiculum are true except: A Meckel's diveiculum usually arises from the ileum within 90 cm. of the ileocecal valve. B Meckel's diveiculum results from the failure of the vitelline duct to obliterate. C The incidence of Meckel's diveiculum in the general population is 20%. D Gastric mucosa is the most common ectopic tissue found within a Meckel's diveiculum. 💡 Explanation All of the following statements about the embryology of Meckel's diveiculum are true except: ✓ Correct Answer: C. The incidence of Meckel's diveiculum in the general population is 20%.