来自兔子肾脏中动脉机械感受器的传入放电。
Afferent discharges from arterial mechanoreceptors in the kidney of the rabbit.
作者信息
Nijima A
出版信息
J Physiol. 1971 Dec;219(2):477-85. doi: 10.1113/jphysiol.1971.sp009673.
Abstract
- Afferent discharges were observed in dissected filaments or single nerve fibres of renal nerves in the rabbit.2. Increasing the arterial perfusion pressure in excised kidney preparations caused an increase in afferent discharge rate. Increasing the venous pressure was without effect. Receptor discharge patterns were compatible with those of the slowly adapting type.3. In vivo, increasing the systemic blood pressure by means of the sinus reflex caused an increase in afferent discharge rate. Afferent discharge patterns showed no synchronicity with heart beat, irrespective of the blood pressure levels.4. It is suggested that mechanoreceptors are present around the arterial walls in the kidney and that they send information about blood pressure levels in the renal artery to the central nervous system.
摘要
- 在兔肾神经的解剖细丝或单根神经纤维中观察到传入放电。2. 在离体肾制备物中增加动脉灌注压会导致传入放电率增加。增加静脉压则无影响。感受器放电模式与慢适应型相符。3. 在体内，通过窦反射增加全身血压会导致传入放电率增加。无论血压水平如何，传入放电模式与心跳均无同步性。4. 提示肾脏动脉壁周围存在机械感受器，它们将肾动脉血压水平的信息发送至中枢神经系统。
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