This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
The inferior most structure of right hilum is 
Select and explain. 
A. Right atrium, B. Inferior pulmonary vein, C. Pulmonary aery, D. Inferior bronchial vein
B: Inferior pulmonary vein
Answer: B: Inferior pulmonary vein 
Explanation: The inferior most structure of right hilum is inferior pulmonary vein. The sequence of structures at the right hilum superior to inferior is: Superior lobar (epaerial) bronchus. Pulmonary aery Principal bronchus Inferior pulmonary vein Ref: Gray&;s Anatomy 41st edition Pgno: 958