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: Surgery
[{'content': 'Complete transection of the spinal cord at the C7 level produces all of the following effects, EXCEPT: \nSelect and explain. \nA. Hypotension, B. Limited respiratory effo, C. Anaesthesia below the level of the lesion, D. A-reflexia below the level of the lesion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Here since the lesion is at the level of C7 respiration is unlikely to be affected. The diaphragm is innervated by the phrenic nerve with a root value C3, 4, 5. Injury at this level can cause difficulty in respiration. Ref: Schwaz Pretest Surgery, Q. 709', 'role': 'assistant'}]