Question

Given below is the diagrammatic representation of a standard ECG. Label its different peaks.

Answer 1

Diagram:

P wave:

$\bullet$ P wave represents,the electrical excitation (or depolarisation) of the atrium, which leads to the contraction of both the atrium.

QRS complex :

$\bullet$ The QRS wave represents depolarization of the ventricles

T wave:

$\bullet$ T wave represents the repolarization of the ventricles.