title: Correlation between changes in membrane potential and intracellular sodium activity during K activated response in sheep Purkinje fibres.
abstract: Following superfusion with a K free medium sheep Purkinje fibres show a strong correlation between changes in membrane potential and the intracellular Na activity in K containing solution. This correlation persists after changes in the internal Na or extracellular K activity and following substitution of Rb for external K.
mesh_terms: D000818:Animals; D006329:Heart Conduction System / Q000187:drug effects*; D007424:Intracellular Fluid / Q000378:metabolism; D008564:Membrane Potentials / Q000187:drug effects; D011188:Potassium / Q000494:pharmacology*; D011690:Purkinje Fibers / Q000187:drug effects*; D012756:Sheep; D012964:Sodium / Q000378:metabolism*
chemical_list: D012964:Sodium; D011188:Potassium