title: Nonuniformity: an important physiological modulator of the contractile performance of the normal heart.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D000818:Animals; D002118:Calcium / Q000378:metabolism; D003285:Contractile Proteins / Q000378:metabolism; D004285:Dogs; D004452:Echocardiography; D004562:Electrocardiography; D006329:Heart Conduction System / Q000502:physiology*; D006331:Heart Diseases / Q000503:physiopathology; D006801:Humans; D009200:Myocardial Contraction; D009206:Myocardium / Q000378:metabolism; D051381:Rats; D012518:Sarcomeres / Q000502:physiology
chemical_list: D003285:Contractile Proteins; D000251:Adenosine Triphosphatases; D002118:Calcium