Arrange these elements of the intrinsic conduction system in the order that a depolarizing impulse travels during a normal heartbeat. rank from first to last. do not overlap any tiles.

The arrangement are SA node, internal pathways, AV node, AV bundle, Bundle branches and Purkinje fibers. The anatomy of the intrinsic conduction system causes contraction of the ventricles to activate at the apex and move superiorly so blood is forced upward, toward the semilunar valves.