Activation of subendocardial Purkinje fibers and muscle fibers of the left septal surface before and after left bundle branch block.
D002037:Bundle-Branch Block; D002318:Cardiovascular Diseases; D006327:Heart Block / Q000502:physiology*; D006346:Heart Septum / Q000502:physiology*; D006801:Humans; D011690:Purkinje Fibers
HEART BLOCK/physiology; HEART SEPTUM/physiology