It then travels towards the atrioventricular node, that makes the sign slow down a little letting the ventricles to fill with blood ahead of pumping it out and beginning the cycle over again.[fifteen] Central describes a position towards the middle (Middle) of a structure or organ procedure. The central anxious https://car-crash-compensation15136.actoblog.com/34666104/helping-the-others-realize-the-advantages-of-activity-levels