This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
The remnant of an omphalomesenteric duct is 
Select and explain. 
A. Median umbilical ligament, B. Meckel's diveiculum, C. Median umbilical fold, D. Omphalocele
B: Meckel's diveiculum
Answer: B: Meckel's diveiculum 
Explanation: The omphalomesenteric duct is an embryonic structure which connects the yolk sac to the midgut, it gets obliterated between the 5thand 9th week of gestation, failure of which result in remnants like Meckel's diveiculum or cyst or fistula The median umbilical ligament is a remnant of the urachus The medial umbilical ligaments are a remnant of the umbilical aeries Ref: Gray's 39e/p-1289