title: Automaticity in cardiac cells.
mesh_terms: D000818:Animals; D001001:Anura; D002415:Cats; D003971:Diastole; D004553:Electric Conductivity; D006321:Heart / Q000502:physiology*; D008564:Membrane Potentials; D009431:Neural Conduction; D010507:Periodicity; D011690:Purkinje Fibers / Q000502:physiology