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': 'Musculocutaneous nerve is injured at the lateral cord of brachial plexus, positive clinical findings would be : \nSelect and explain. \nA. Loss of flexion at shoulder, B. Sensory loss on the radial side of the forearm, C. Loss of extension of forearm, D. Loss of extension of the wrist', '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'}]