众所周知,肾上腺素对心脏具有正性变力和正性变时作用,常以蛙心灌流实验加以观察。但在实验中,当室温较低时,往往不能获得预料结果,少数实验反倒出现抑制效应。本实验目的在于探求在较低室温时,肾上腺素对心肌发挥正性作用所需的理想的灌注液温度,以保证生理教学质量。此项科研尚未见有文献报道。 As we all know, adrenaline on the heart has a positive force and positive variable role, often frog heart perfusion experiment to be observed. However, in the experiment, when the room temperature is low, often can not get the expected results, a handful of experiments on the contrary appear to inhibit the effect. The purpose of this experiment was to explore the ideal perfusate temperature required for the positive effects of epinephrine on myocardium at lower room temperatures to ensure the quality of physiology teaching. This research has not been reported in the literature.