Potassium- and sodium- induced changes in the electrical activity of heart cells "in vitro".
D000200:Action Potentials; D000818:Animals; D002642:Chick Embryo; D046508:Culture Techniques; D004594:Electrophysiology; D006329:Heart Conduction System / Q000187:drug effects / Q000502:physiology*; D008564:Membrane Potentials; D009206:Myocardium / Q000166:cytology; D011188:Potassium / Q000494:pharmacology*; D012964:Sodium / Q000494:pharmacology*
D012964:Sodium; D011188:Potassium