title: The heart as a muscle--pump system and the concept of heart failure.
mesh_terms: D000818:Animals; D002415:Cats; D006321:Heart / Q000503:physiopathology*; D006333:Heart Failure / Q000503:physiopathology*; D009200:Myocardial Contraction; D010210:Papillary Muscles / Q000502:physiology; D005082:Physical Exertion; D011817:Rabbits; D013318:Stroke Volume; D013599:Systole; D016276:Ventricular Function