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The electrocardiogram (ecg) complex represents the electrical events occuring in _____

User Setjmp
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The heart.

More specifically, it is a line representation of what the heartbeat looks like. There are three main components to an ECG: the P wave, which represents depolarization of the atria; the QRS complex, which represents depolarization of the ventricles; and the T wave, which represents repolarization of the ventricles.

User Chef Mike
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