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为了进一步研究氨刺激兔鼻粘膜引起心血管反应(CVRA)的神经机制,特别是心交感神经在其中的作用,本工作观察了一些条件下的CVRA情况。 实验在38只家兔身上进行,用2％普鲁卡因局麻,并用三碘季铵酚制动。气管插管后,一例股动脉插管描记血压,用二导生理记录仪同时记录心电。刺激方法是:用注射器将饱和氨蒸气(0.05—1ml)注入鼻腔,每组动物每次刺激所用的氨量是一定的。 1、氨刺激清醒兔鼻粘膜可引起心率和动脉血压的改变:氨刺激后平均0.3秒左右心率
In order to further study the neural mechanism of ammonia-stimulated rabbit nasal mucosa-induced cardiovascular reaction (CVRA), especially the role of cardiac sympathetic nerve in it, we observed the CVRA under some conditions. Experiments were performed on 38 rabbits, with 2% procaine local anesthesia and brazing with triiodide quaternary ammonium phenol. After tracheal intubation, a case of femoral artery catheterization of blood pressure, with two guided physiological recorder at the same time record ECG. Stimulation is: a syringe filled with saturated ammonia vapor (0.05-1ml) into the nasal cavity, each group of animals used for each stimulation of ammonia is certain. 1, Ammonia stimulation of the nasal mucosa in rabbits can cause changes in heart rate and arterial pressure: the average 0.3 second heart rate after ammonia stimulation