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Question

In ECG, P - wave represents


A
Ventricular repolarization
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B
Ventricular depolarization
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C
Atrial depolarisation
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D
Atrial repolarization
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Solution

The correct option is C Atrial depolarisation
An ECG (electrocardiogram) is a test to check the electrical activity of the heart. ECG measures the atrial and ventricular depolarization and repolarization in the form of waves. It comprises of three waves, namely P wave, QRS complex and T wave. P wave in ECG represents atrial depolarization. QRS complex represents ventricular depolarization. T wave represents ventricular repolarization. 
Thus, the correct answer is option C.

Biology

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