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': 'Structure which does NOT pass under flexor retinaculum - \nSelect and explain. \nA. Ulnar nerve, B. Median nerve, C. Flexor digitorum superficialis, D. Flexor digitorum profundus', 'role': 'user'}, {'content': 'Answer: A \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 \xa0Flexor digitorum superficialis\n\xa0 \xa0 \xa0 \xa0Flexor digitorum profundus\n\xa0 \xa0 \xa0 \xa0Flexor pollicis longus\n\xa0 \xa0 \xa0 \xa0Flexor carpi radialis', 'role': 'assistant'}]