How does human heart activity monitored? Explain with P,Q,R,S and T wa

1.	How does human heart activity monitored? Explain with P,Q,R,S and T wave complexClass 11
Answer» The P wave indicates atrial depolarization. The P wave occurs when the sinus node, also known as the sinoatrial node, creates an action potential that depolarizes the\xa0atria. The P wave should be upright in lead II if the action potential is originating from the SA node.\xa0ECG – A Pictorial Primer. Atrial and ventricular depolarization and repolarization are\xa0represented\xa0on the ECG as a series of\xa0waves: the\xa0P wave\xa0followed by the\xa0QRS\xa0complex and the\xa0T wave. The first deflection is the\xa0P wave\xa0associated with right and left atrial depolarization. ... The second\xa0wave\xa0is the\xa0QRS\xa0complex.

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