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': 'Most commonly used vein for intravenous injection is: \nSelect and explain. \nA. Cephalic vein, B. Basilic vein, C. Median cubital vein, D. Median vein of the forearm', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. Median cubital veinThe median cubital vein (or median basilic vein) is a superficial vein of the upper limb. It is very clinically relevant as it is routinely used for venipuncture (taking blood) and as a site for an intravenous cannula. It connects the basilic and cephalic vein and becomes prominent when pressure is applied. It lies in the cubital fossa superficial to the bicipital aponeurosis.', 'role': 'assistant'}]