Medical
Biology
White Blood Cells WBC and Red Blood Cells RBC
Question

ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented.

Depolarisation of atria

Repolarisation of atria

Depolarisation of ventricles

Repolarisation of ventricles

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Solution

P wave – depolarization of atria

QRS wave – depolarization of ventricles

T wave – repolarization of ventricles

Repolarization of atria is not shown in the ECG.

Hence, ‘repolarization of atria’ is correct answer.

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