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 16 years old girl failed in her final examination. Disgusted with life, she cut across the front of wrist at the flexor retinaculum. She was rushed to hospital. The surgeon noticed that cut was superficial. All the following structures would have been damaged except : \nSelect and explain. \nA. Ulnar nerve, B. Median nerve, C. Palmar cutaneous branch of median nerve, D. Superficial branch of radial artery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Structures superficial to flexor retinaculum :\n\n\xa0 \xa0 \xa0 \xa0\xa0Palmaris longus.\n\xa0 \xa0 \xa0 \xa0\xa0Ulnar vessels and nerve.\n\xa0 \xa0 \xa0 \xa0\xa0Palmar cutaneous branches of median and ulnar nerves.\n\n\xa0Structures deep to flexor retinaculum :\n\n\xa0 \xa0 \xa0 Median nerve.\n\xa0 \xa0 \xa0 Flexor digitorum superficialis.\n\xa0 \xa0 \xa0\xa0Flexor digitorum profundus.\n\xa0 \xa0 \xa0 Flexor pollicis longus.\n\xa0 \xa0 \xa0Flexor carpi radialis.', 'role': 'assistant'}]