This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
[{'content': 'Which of the following is the insertion of the shown muscle? \nSelect and explain. \nA. Radial tuberosity, B. Olecranon process, C. Radial head, D. Medial malleolus', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. A Radial tuberosityRef: Gray's Anatomy 41st ed. P 824* The shown muscle in the image is biceps brachii.* It has two proximal heads (hence the name). Their attachments are:# Short head: Tip of coracoid process# Long head: Supraglenoid tubercle of scapula* Insertion:# Radial tuberosity and fascia of forearm via bicipital aponeurosis* Innervation: Musculocutaneous nerve (C5, C6)* Action: Supination of forearm and flexion of shoulder joint", 'role': 'assistant'}]