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
[{'content': 'Which of the followings distribution is used for segmental division of liver? \nSelect and explain. \nA. Hepatic veins and portal vein, B. Hepatic veins and bile ducts, C. Portal vein and bile ducts, D. Portal vein and hepatic artery', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Hepatic veins and portal vein o Based on the distribution of the portal vein and hepatic vein, couinaud divided functional lobes of liver into eight segments.Right lobeLeft lobeo Anterior# Right anterior inferior - Segment V# Right anterior superior - Segement VIIIo Posterior# Right posterior inferior - Segment VI# Right posterior superior - Segment VIIo Lateral# Left lateral superior - Segment II# Left lateral inferior - Segment IIIo Medial# Segment IV (Quadrate lobe)i) Left medial superior - IV aii) Left medial inferior - IV bo Caudate lobe (segment I) is posterior segment", 'role': 'assistant'}]