Multiple choice What is the function of bundle of His? It relays cardiac impulses to the ventricular cells. It transmits impulses from the atrioventricular node. It plays a role in the regulation of heartbeat/rhythm. It initiates the nerve impulse. Reveal answer Fill a bubble to check yourself B Correct answer Explanation The bundle of His is an important part of the electrical conduction system of the heart as it transmits impulses from the atrioventricular node.