Correlations between electron microscopic and physiological observations in heart muscle.
D000200:Action Potentials; D000818:Animals; D001001:Anura; D002118:Calcium / Q000378:metabolism; D002462:Cell Membrane; D006321:Heart / Q000502:physiology*; D008322:Mammals; D008854:Microscopy, Electron; D009119:Muscle Contraction; D009206:Myocardium / Q000166:cytology*
D002118:Calcium