title: Myocardial contractility. I. Mechanism of increase in developed tension due to stretching the isolated heart.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002118:Calcium / Q000494:pharmacology; D004594:Electrophysiology; D005459:Fluorides / Q000494:pharmacology; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D006339:Heart Rate; D066298:In Vitro Techniques; D007461:Iodoacetates / Q000494:pharmacology; D008297:Male; D009119:Muscle Contraction; D009994:Osmolar Concentration; D010425:Pentolinium Tartrate / Q000494:pharmacology; D010477:Perfusion; D011188:Potassium / Q000494:pharmacology; D011433:Propranolol / Q000494:pharmacology; D051381:Rats; D012110:Reserpine / Q000494:pharmacology; D012964:Sodium / Q000494:pharmacology; D013696:Temperature
chemical_list: D007461:Iodoacetates; D001285:Atropine; D012110:Reserpine; D010425:Pentolinium Tartrate; D012964:Sodium; D011433:Propranolol; D005459:Fluorides; D011188:Potassium; D002118:Calcium