The sequence of depolarization and repolarization makes the electrical sign that triggers the contraction on the heart and also the ejection of blood. Is polarized teaching much better? There are some Advantages and disadvantages to polarized teaching listed below: Polarized schooling is evidence that much more isn’t always much better. https://elliottvaayk.shotblogs.com/the-2-minute-rule-for-polarized-heart-43725996