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  4. The QRS complex in an ECG is not related to:

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Q. The QRS complex in an ECG is not related to:

NTA AbhyasNTA Abhyas 2020Body Fluids and Circulation

Solution:

The QRS complex in ECG represents the depolarisation of the ventricles, which initiates the ventricular contraction. By counting the number of QRS complex in a given time period, the heart beat of a person can be determined.