title: Responses and Ca uptake of cardiac muscle in Na-free high-Ca solutions.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001001:Anura; D002118:Calcium / Q000378:metabolism*; D004597:Electroshock; D004837:Epinephrine / Q000494:pharmacology; D006321:Heart / Q000502:physiology*; D006325:Heart Atria; D066298:In Vitro Techniques; D007552:Isotonic Solutions; D008931:Mitochondria, Muscle / Q000378:metabolism; D009119:Muscle Contraction; D009206:Myocardium / Q000378:metabolism*; D012964:Sodium; D013268:Stimulation, Chemical; D013779:Tetrodotoxin / Q000494:pharmacology
chemical_list: D007552:Isotonic Solutions; D013779:Tetrodotoxin; D012964:Sodium; D000109:Acetylcholine; D002118:Calcium; D004837:Epinephrine