Among the following, the last pa of the ventricle to be depolarized:
Epicardium of the base of LV
Endocardium of the base of LV
Apical epicardium
Apical endocardium
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.
Conducting System of Hea