P wave in ECG is due to :
Ventricular depolarization
Atrial repolarization
Ventricular repolarization
Atrial depolarization
Ans. (d) Atrial depolarizationECG findingSignificanceP waveAtrial DepolarizationQRSVentricular depolarizationT waveVentricular repolarizationU waveDelayed repolarization of papillary musclesPR intervalSpread of impulse from SAN to AVNST segmentIso-electric segment
Electrocardiography