This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hepatobiliary System, Subject name: Anatomy
All form part of portal triad except - 
Select and explain. 
A. Hepatic artery, B. Hepatic vein, C. Bile duct, D. Portal vein
B: Hepatic vein
Answer: B: Hepatic vein 
Explanation: Ans. is 'b' i.e., Hepatic vein o Glissons's capsule extend into the liver around branches of hepatic artery, portal vein and bile ducts as branching trabeculae called as portal tracts (portal canals).o The combination of a bile ductule, branch of hepatic artery, and branch of portal vein is referred to as portal triad.