Depolarisation of atria on ECG is seen as
P wave shows atrial depolarizationQRS complex shows ventricular depolarization T wave shows ventricular repolarizationST segment represents the duration from the end of ventricular depolarization to the beginning of ventricular repolarizationRef: Textbook of medical physiology by N Geetha,2nd edition, page no. 136
P-wave
QRS complex
T-wave
ST segment
Cardiovascular system