prepotential

pre·po·ten·tial

(prē'pō-ten'shăl),
A gradual rise in potential between action potentials as a phasic swing in electric activity of the cell membrane, which establishes its rate of automatic activity, as in the ureter or cardiac pacemaker.

pre·po·ten·tial

(prē'pō-ten'shăl)
A gradual rise in potential between action potentials as a phasic swing in electric activity of the cell membrane, which establishes its rate of automatic activity, as in the ureter or cardiac pacemaker.
References in periodicals archive ?
Beta-adrenergic agonist (isoproterenol) stimulation of the patient-specific iPSC-derived cardiomyocytes caused delayed afterdepolarization, arrhythmogenic oscillating prepotentials, and postcontractions.
Evidence for dendritic origin of spikes without depolarizing prepotentials in hippocampal neurons during and after seizure.
In reduced preparations consisting of the tail connected by its nerves to the central nervous system, stimulation of the tail with a glass probe activated a barrage of action potentials with no prepotentials ([ILLUSTRATION FOR FIGURE 3D OMITTED]; similar results observed in two additional preparations).