The QRS complex represents the time it takes for:

Question

Quizplus · Accepted Answer

The QRS complex represents the depolarization (contraction) of the ventricles, which takes place immediately after the depolarization of the atria (represented by the P wave). Repolarization of the ventricles is represented by the T wave, which comes after the QRS complex. The initiation of the electrical current at the SA node is represented by the P wave, and the current moving through the atria is also represented by the P wave. Therefore, the best choice is A, as it accurately represents the QRS complex.

The QRS Complex Represents the Time It Takes For