<prompt> Most commonly used vein for intravenous injection is:Cephalic veinBasilic veinMedian cubital veinMedian vein of the forearm  <response>: 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. 