In ECG,the T-wave represents: | vedclass

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(C) In an $ECG$ (Electrocardiogram),the electrical activity of the heart is represented by specific waves:$1$. The $P$-wave represents the electrical

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Repolarisation of ventricle

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(C) In an $ECG$ (Electrocardiogram),the electrical activity of the heart is represented by specific waves:$1$. The $P$-wave represents the electrical excitation (or depolarization) of the atria,which leads to the contraction of both atria.$2$. The $QRS$ complex represents the depolarization of the ventricles,which initiates ventricular contraction.$3$. The $T$-wave represents the return of the ventricles from an excited state to a normal state (repolarization). The end of the $T$-wave marks the end of systole.

In $ECG$,the $T$-wave represents:

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