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': 'Following anterior dislocation of the shoulder, a patient develops weakness of flexion at elbow and lack of sensation over the lateral aspect forearm : nerve injured is - \nSelect and explain. \nA. Radial nerve, B. Musculocutanous nerve, C. Axillary nerve, D. Ulnar nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Musculocutaneous nerve supplies biceps and brachialis. It also gives sensory supply along the radial side of forearm. When it is damaged, it might show the following.\n\nFlexion at elbow weakened (Biceps & Brachialis).\nSupination of semiflexed elbow is affected (Biceps).\nSensory loss on radial side of forearm.', 'role': 'assistant'}]