This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
[{'content': 'Which one of the following statements about the poal vein is false ? \nSelect and explain. \nA. It is formed by the union of the superior mesenteric and splenic veins, B. It ascends posterior to the neck of the pancreas and the superior pa of the duodenum, C. The bile duct and the hepatic aery lie anterior to its upper pa, D. It ends by dividing into the hepatic veins', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The poal vein is usually formed by the confluence of the superior mesenteric and splenic veins and also receives blood from the inferior mesenteric, gastric, and cystic veins. Conditions involving the poal vein cause considerable illness and death. An impoant example of such a condition is elevated blood pressure in the poal vein. This condition, called poal hypeension, is a major complication of cirrhosis. Ref - sciencedirect.com', 'role': 'assistant'}]