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': 'A patient was on DVT prophylaxis. All of the following has perforators which connect superficial veins to the deep veins, except: \nSelect and explain. \nA. Ankle, B. Below the inguinal ligament, C. Mid calf, D. Lower thigh', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Below inguinal ligament Blood flows from the superficial to the deep veins through perforating (communicating veins)Perforators are located- below the medial malleolus (inframalleolar perforator)- in the medial calf (Cockett perforators)- just above (Dodd perforator) & below the knee (Boyd perforator)- at the level of the adductor canal (Hunterian perforator)', 'role': 'assistant'}]