Surgery Small & Large Intestine 9d21c1aa Meckel's diverticulum is a derivative of: A Allantoic diverticulum B Vitellointestinal duct C Ventral mesogastrium D Ductus arteriosus High-Yield Explanation Ans. (b) Vitellointestinal duct* Persistence of Proximal VID: Meckel's* Persistence of Distal VID: Umbilical adenoma (Raspberry; tumor)