This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Posterior relations of head of pancres are all except: 
Select and explain. 
A. Common bile duct, B. First pa of duodenum, C. Aoa, D. Inferior vena cava
B: First pa of duodenum
Answer: B: First pa of duodenum 
Explanation: B i.e. First pa of duodenumCommon bile duct, inferior venacava lie posterior to head; aoa lies posterior to uncinate process of head; whereas 1St pa of duodenum lie superior & anterior to head of pancreas not posterior