Samek D, Korczak K, Gwóźdź B
Acta Physiol Pol. 1981 Sep-Oct;32(5):487-500.
The experiments were carried out on 30 rabbits with whole body heating to lethal temperatures. During the process of heating records were done of the rectal temperature, arterial blood pressure, heart rate, ECG and action potentials in the aortic nerves. It was found that heating the animals up to 41.5 degrees and to 43 degrees C increased initially slightly the arterial blood pressure but then decreased this pressure gradually. The heart rate increased during heating but decreased steeply at temperatures preceding death. The fall of the arterial blood pressure was associated with a decrease in the frequency of action potentials in the aortic nerves. The appearance of isolated action potentials within several minutes after heart arrest suggests spontaneous activity of certain baroreceptors.
对30只兔子进行全身加热至致死温度的实验。在加热过程中,记录了直肠温度、动脉血压、心率、心电图以及主动脉神经的动作电位。结果发现,将动物加热至41.5摄氏度和43摄氏度时,动脉血压最初略有升高,但随后逐渐下降。心率在加热过程中增加,但在死亡前的温度下急剧下降。动脉血压的下降与主动脉神经动作电位频率的降低有关。心脏骤停后几分钟内出现的孤立动作电位表明某些压力感受器的自发活动。