Effects of Na+ and Ca++ on the spontaneous excitation of the bivalve heart muscle.
D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D008564:Membrane Potentials / Q000187:drug effects; D008974:Mollusca; D009119:Muscle Contraction; D009132:Muscles / Q000187:drug effects; D009206:Myocardium / Q000166:cytology; D009210:Myofibrils; D010828:Physiology, Comparative; D012964:Sodium / Q000494:pharmacology*
D012964:Sodium; D002118:Calcium