What Happens in Winkiback?

i am particularly interested in the path o physiology of this, and how you can have a progressivey, prolong p r and then suddenly drop a beat and then have it repeat. So to understand why the winkyback rhythm has this unique pattern, we first need to understand the concepts of absolute refractory period and relative refractory periods. And if you de polarize during the relative part, it's just a weaker and slower sort of phenomenon. So remember that winki back himself figured this rhythm out without even knowing what the a v note is at all. But the a note is actually crucial to this heart, type of heart block arising so normally to allow for efficient and coordinated