This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oesophagus, Subject name: Surgery
Food can get stuck in the esophagus at the following locations, except: 
Select and explain. 
A. Crossing of left bronchus, B. Crossing of arch of aorta, C. Diaphragmatic opening, D. Crossing of the hemiazygous vein
D: Crossing of the hemiazygous vein
Answer: D: Crossing of the hemiazygous vein 
Explanation: Ans. (d) Crossing of hemiazygous veinRef: Bailey and Love 26th Edition, Page 987Natural constrictions of esophagus are at:* 15cm-- Incisor teeth* 25cm--Arch of aorta* 27cm--Left Bronchus* 40cm--Diaphragmatic aperture