<prompt> Ventricular depolarization stas from:Posterolateral area of ventricleBase of left ventricleRight pa of interventricular septumLeft pa of interventricular septum  <response>: Ans. d. Left pa of interventricular septumVentricular depolarization stas from left pa of interventricular septumSpread of Depolarization in the VentriclesFirst to be depolarized is the left upper pa of the interventricular septum; septal depolarization is from left to right2.The wave of depolarization spreads down the septum to the apex. proceeding from endocardium to epicardiumQLast pas of the ventricles to be depolarized arePosterobasal poion of the left ventricleQPulmonary conusQA small uppermost poion of the septumQ 