<prompt> Musculocutaneous nerve pierces which one of the following muscle?BrachialisCorachobrachialisBiceps muscleBrachioradialis  <response>: The musculocutaneous nerve supplies the biceps brachi, brachialis coracobrachialis. It pierces the coracobrachialis, lies between the biceps brachialis continues laterally as the lateral cutaneous nerve of the forearm. It supplies the skin of forearm from the elbow to the wrist joint. Ref: guyton and hall textbook of medical physiology 12 edition page number:671,672,673 