This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower limb 1, Subject name: Anatomy
[{'content': 'A 72-year-old woman complains of a cramplike pain in her thigh and leg. She was diagnosed as having a severe intermittent claudication.Following surgery, an infection was found in the adductor canal, damaging the enclosed structures. Which of the following structures remains intact? \nSelect and explain. \nA. Femoral aery, B. Femoral vein, C. Saphenous nerve, D. Great saphenous vein', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The Great Saphenous Vein remains intact because it is not in the Adductor Canal. The Adductor Canal contains the Femoral Vessels, the Saphenous Nerve, and the Nerve to the Vastus Medialis.', 'role': 'assistant'}]