title: The apparent source resistance of heart and muscle.
mesh_terms: D001696:Biomechanical Phenomena; D002302:Cardiac Output; D003187:Compliance; D006352:Heart Ventricles; D006801:Humans; D008433:Mathematics; D008954:Models, Biological; D009200:Myocardial Contraction; D010210:Papillary Muscles / Q000502:physiology