Ventricular repolarization occurring from endocardium to epicardium.
+Ventricular repolarization occurring from epicardium to endocardium.
+Ventricular depolarization occurring from endocardium to epicardium.
+Ventricular depolarization occurring from epicardium to endocardium.
+Abnormal delay in AV nodal reconduction.
Since the normal direction for the repolarization wave is from epicardium to endocardium, reversing this sequence from endocardium to epicardium will produce an inverted T wave. A delay in AV nodal conduction will not affect the normal sequence of events in the ventricles.