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': 'The following structure does not pass through flexor retinaculurn \nSelect and explain. \nA. Ulnar N., B. Median N., C. Flexor digitorum profundus, D. Flexor digitorum superficialis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ulnar nerve Flexor retinaculum (F.R.)Is a thickening of deep fascia which bridges the ant. concavity of the carpus and conves it into an osteofascial tunnel, the carpal tunnel.Structures passing beneath the flexor retinaculum from medial to lateral are:Flexor digitorum superficialis tendon & post. to these flexor digitorum profundus tendonsMedian N.Flexor pollicis longusFlexor carpi radialis', 'role': 'assistant'}]