S wave

Which part of the excitation does the S wave represent?

The end of ventricular depolarization is represented by the S wave. After the apex is fully excitated, the basal right ventricular myocardium is excitated. At this point, depolarization spreads upwards and to the right again, meaning away from the electrical heart axis.

Ready to Master your ECG Skills ?

This is just a taste of our ecg course. Unlock your full course now !