
Because of this delay in right ventricular depolarization, some of the right ventricular forces will be unopposed and will generate a spatial vector that is directed to the right and anteriorly. This is shown by the purple arrow. These unopposed right ventricular electrical forces will follow the leftward and posteriorly directed forces (the red arrow) that are associated with left ventricular depolarization and are unaffected by the right bundle branch block.