Cardiac action potential
![Image 1: Standard model of a cardiomyocyte action potential[7]](/uploads/202412/22/Action_potential_ventr_myocyte1206.gif)

The cardiac action potential is a short-lasting event in which the membrane potential (the difference of potential between the interior and the exterior) of a cardiac cell rises and falls following a consistent trajectory, similar to the action potential in other types of cells.