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
[{'content': 'Left gastric vein drains into: \nSelect and explain. \nA. Inferior vena cava, B. Poal vein, C. Directly into splenic vein, D. Splenic vein through sho gastric vein', 'role': 'user'}, {'content': "Answer: B \nExplanation: B i.e. Poal vein-Left and right gastric veins drain directly into the poal veinQ.- Poal vein is formed by union of superior mesenteric & splenic veins behind the neck of pancreasQ at the level of L2 veebrae and runsupwards with bile duct & hepatic aery (related anteriorly)(2 and inferior i'ena cava (related posteriorly)Q", 'role': 'assistant'}]