The role of small potentials in the regulation of rhythm in an oyster heart.
D000109:Acetylcholine / Q000494:pharmacology; D000200:Action Potentials; D000818:Animals; D004594:Electrophysiology; D006321:Heart / Q000294:innervation / Q000502:physiology*; D006352:Heart Ventricles; D008274:Magnesium / Q000494:pharmacology; D008974:Mollusca; D009119:Muscle Contraction; D009206:Myocardium; D009431:Neural Conduction; D010507:Periodicity
D008274:Magnesium; D000109:Acetylcholine