Question

The qrs complex is associated with ________. the qrs complex is associated with ________. depolarization of the ventricular septum depolarization of the ventricles repolarization of the ventricles depolarization of the atria

Answer 1

In a typical ECG (Electrocardiogram) the first wave obtained is P wave; The P wave represents the depolarization of the atria. After this, the QRS complex is formed. The QRS wave represents the depolarization of the ventricles.  During the depolarization phase, the ventricles contracts and pushes the blood into the atria. Hence, the correct answer is depolarization of the ventricles.