Editing Pacemaker potential (section)

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In the [[Pacemaker cells|pacemaking cells]] of the [[heart]] (e.g., the [[sinoatrial node]]), the '''pacemaker potential''' (also called the '''pacemaker current''') is the slow, positive increase in voltage across the [[cardiac myocyte|cell]]'s membrane, that occurs between the end of one [[action potential]] and the beginning of the next. It is responsible for the self-generated rhythmic firing ([[Cardiac automaticity|automaticity]]) of pacemaker cells.