Lesson plan
Pacemaker potential
In the 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 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 (automaticity) of pacemaker cells.
Article summary
In the 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 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 (automaticity) of pacemaker cells.
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Discussion questions
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