The cardiac excitation-contraction cycle.
D000200:Action Potentials; D000818:Animals; D001711:Biotransformation; D002118:Calcium / Q000378:metabolism / Q000502:physiology; D003285:Contractile Proteins / Q000502:physiology; D004558:Electric Stimulation; D004734:Energy Metabolism; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D009200:Myocardial Contraction
D003285:Contractile Proteins; D002118:Calcium