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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Portal vein is formed -
assistant
The correct answer is  Ans. is 'c' i.e.. Behind the neck of the pancreas o The portal vein is about 8 cm long.o It is formed by union of superior mesenteric vein and splenic vein behind the neck of pancreas at the level of L2 vertebrae in front of inferior vena cava (LVC).