Alterations in resting length-tension relations of cardiac muscle induced by changes in contractile force.
D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D002415:Cats; D004285:Dogs; D004548:Elasticity; D004558:Electric Stimulation; D006352:Heart Ventricles; D066298:In Vitro Techniques; D009206:Myocardium; D009638:Norepinephrine / Q000494:pharmacology*; D010210:Papillary Muscles
D002118:Calcium; D009638:Norepinephrine