Oscillatory after-potentials and triggered-automaticity in mammalian ventricular muscle fibres at high resting potentials.
Oscillatory after-potentials and triggered-automaticity were observed in dog ventricular muscle fibres when the fibres were exposed to K+-free,high-Ca++-solutions after K+-free,Ca++-free perfusion. They appeared at membrane potentials more negative than--60 m V.
D000818:Animals; D002118:Calcium / Q000494:pharmacology; D004285:Dogs; D004553:Electric Conductivity; D006321:Heart / Q000502:physiology*; D066298:In Vitro Techniques; D008564:Membrane Potentials; D009200:Myocardial Contraction / Q000187:drug effects; D011188:Potassium / Q000494:pharmacology
D011188:Potassium; D002118:Calcium