Question

48 multiple choice 10 points what causes the p wave on an ecg? repolarization of atrial myocardium repolarization of ventricular myocardium depolarization of ventricular myocardium depolarization of atrial myocardium

Explanation:

The P - wave on an electrocardiogram (ECG) represents the depolarization of the atria (atrial myocardium). Depolarization is the process by which the heart muscle cells become electrically charged, initiating a contraction. Repolarization is the return of the cells to their resting state. The P - wave specifically corresponds to the electrical activity in the atria, not the ventricles.

Answer:

Depolarization of atrial myocardium