Influence of changes in pH on the mechanical activity of cardiac muscle.
D000818:Animals; D001001:Anura; D002118:Calcium; D002245:Carbon Dioxide; D004594:Electrophysiology; D006321:Heart / Q000502:physiology*; D006352:Heart Ventricles; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000502:physiology; D010313:Partial Pressure; D011188:Potassium
D002245:Carbon Dioxide; D011188:Potassium; D002118:Calcium