 
<translate> Tambaya. Yanayi: P wave a cikin ECG yana wakiltar depolarization na atrial, wanda ke haifar da ƙuntatawa na atrial, ko atrial systole.  Tambaya: sashin p-wave na electrocardiogram (ecg) yana wakiltar? Amsa. atrial depolarization, wanda ke haifar da raguwa na atrial, ko atrial systole Wane bayani ne ya nuna cewa hakan gaskiya ne? <eng> Question. Context: The P wave in the ECG represents atrial depolarization, which results in atrial contraction, or atrial systole.

Question: the p-wave phase of an electrocardiogram (ecg) represents?
Answer. atrial depolarization , which results in atrial contraction , or atrial systole
What step-by-step reasoning justifies that answer? 