Über die Reaktion der höheren und tieferen Reizbildungszentren des isolierten Herzens auf Temperatursenkung
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In the isolated rabbit heart perfused by the Langendorff method total heart block has been produced by section of the His bundle. The influence of cooling of the perfusion fluid upon higher and lower automatic centers was studied. The sinoauricular pacemaker responded to cooling with a much greater decrease of the heart rate than did the ventricular automatism. The responsiveness of the atrioventricular node to cooling lay between that of the two others.