This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastro Intestinal System, Subject name: Pediatrics
Meckel Diverticulum is a remnant of: 
Select and explain. 
A. Vitelloumbilical duct, B. Vitellointestinal duct, C. Vitelloportal duct, D. Vitellodiaphragmatic duct
B: Vitellointestinal duct
Answer: B: Vitellointestinal duct 
Explanation: b. Vitello intestinal duct(Ref: Nelson's 20/e p 1894-1897Ghai 8/e p 285-286)High Yield Points:Meckel diverticulum is the most common congenital anomaly of the GI tractIt is caused by the incomplete obliteration of the omphalomesenteric or Vitello intestinal duct during the 7th wk of gestation