Inhibition of transient outward current by intracellular ion substitution unmasks slow inward calcium current in cardiac Purkinje fibers.
D000818:Animals; D002118:Calcium / Q000502:physiology*; D002417:Cattle; D002586:Cesium / Q000502:physiology; D004553:Electric Conductivity; D005711:Gallopamil / Q000494:pharmacology; D006329:Heart Conduction System / Q000502:physiology*; D007473:Ion Channels / Q000502:physiology; D008345:Manganese / Q000494:pharmacology; D009761:Nystatin / Q000494:pharmacology; D011188:Potassium / Q000502:physiology*; D011690:Purkinje Fibers / Q000502:physiology*
D007473:Ion Channels; D009761:Nystatin; D002586:Cesium; D005711:Gallopamil; D008345:Manganese; D011188:Potassium; D002118:Calcium