<prompt> Among the following, the last pa of the ventricle to be depolarized:Epicardium of the base of LVEndocardium of the base of LVApical epicardiumApical endocardium  <response>: Depolarization spreads from apex to base and from endocardium to epicardium. Thus, last pa of the hea to be depolarized is: epicardium of the base of the LV. The other pas where depolarization reaches last: pulmonary conus, uppermost pa of interventricular septum. 