File talk:Cardiac cycle ions related to ECG.svg

The reason this is nonsense is that it is wrong: it relates the action of one cardiac cell to an ecg; ECGs show the rapid depolarization action of all of the cells in the atria in the first wave (the P wave) and the action of all of the myocardial cells in the interventricular septum in the Q wave, and the action of all the myocardial cells in the ventricles in the R wave. To equate this article to walking, the ECG is like walking 5000 steps along three interconnected roads, and this image mistakenly equates each stride with walking the whole path.