The electrocardiogram (ECG) is the graphical representation of the cardiac cycle generated by the electrogram. Below is a schematic of a standard EKG.
Each ECG peak, represented by the letters P to T, corresponds to a certain electrical activity of the heart.
(i) The first "P" peak indicates atrial depolarization (atrial contraction).
(ii)The following QRS complex represents the depolarization of the ventricles (ventricular contraction).
(iii) The final T wave represents ventricular repolarization (ventricular relaxation).Answered by Pragya Singh | 11 months ago