Question

plz tell me about ECG and explain me briefly plzzz

Answer 1

Hii..

❇️ECG refers to Electro cardio graph...it is the measure of the activity of the heart by placing electrodes on the body ..

❇ECG has different waves which denote the systole(contraction) and diastole(relaxation) of the chambers..
↪️As u see in the picture..

--P wave represents atrial depolarisation(contraction)

--QRS complex represents ventricular depolarisation.

--T wave represents ventricular repolarisation.
(repolarisation - change in membrane potential and returning of it into normal value)

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Hope this helps!