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Explain why the T wave on an ECG is positive, despite representing ventricular repolarization.
Biology
ScanSolve AI Answer
The T wave is positive because, even though it represents ventricular repolarization (which is opposite to depolarization), the sequence of repolarization is reversed. The last part of the ventricular muscle to depolarize is the first part to repolarize. This causes the overall electrical vector of repolarization to move in the same general direction as depolarization, resulting in a positive deflection on the ECG.
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