NEET Biology question

In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?

(A)S - start of systole
(B)T - end of diastole
(C)P - depolarization of the atriaCorrect
(D)R - repolarization of ventricles

Answer: (C)

Solution

The P wave of an ECG specifically represents depolarisation of the two atria, matching option (c); the R wave is part of ventricular depolarisation (not repolarisation),

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Question ID VK-116212