<prompt> Which of the following is the order of activation after stimulation of Purkinje fibers isSeptum Endocardium EpicardiumEndocardium Septum EpicardiumEpicardium Septum EndocardiumSeptum Epicardium Endocardium  <response>: Order of depolarization in the heart.- First- Left side of interventricular septum- Moves to right across the mid-portion of the septum- Apex of heart- Along ventricular walls to AV groove Endocardium to epicardium- Last- Posterobasal portion of the left ventricle, pulmonary conus, uppermost portion of the septum. 