.3. CENTRAL AND PERIPHERAL FACTORS IN NEURAL REGULATION - CONTROL OF RESPIRATION BY ARTERIAL CHEMORECEPTORS
.3. CENTRAL AND PERIPHERAL FACTORS IN NEURAL REGULATION - CONTROL OF RESPIRATION BY ARTERIAL CHEMORECEPTORS
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DOI：
10.1111/j.1749-6632.1963.tb13497.x
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发表时间：
1963-01-01
影响因子：
5.2
通讯作者：
DEJOURS, P
中科院分区：
文献类型：
--
作者：
DEJOURS, P
Dejour：动脉化学感受器683通过动脉PCO或pH刺激化学感受器。动脉血二氧化碳分压(PaCO_2)对化学感受器的刺激阈值高于常氧；~-~该阈值的确切位置还取决于动脉血二氧化碳分压(PaCO)的伴生值，而动脉中单个化学感受器纤维的阈值似乎不同，动脉血氧分压越低，化学感受器活性越强。根据对颈动脉神经质量放电率的研究，刺激-反应曲线呈S形，放电率在PaO值25-40 mm时达到峰值。HG。7~*二氧化碳刺激阈值在30 mM以下。Hg203-增加I‘ACO，直到较高的值都会增加化学感受器的活性。与氧气刺激一样，对二氧化碳的刺激-反应曲线呈S形。8
Dejours: Arterial Chemoreceptors 683 stimulation of the chemoreceptors by arterial PCO, or pH. The threshold for chemoreceptor stimulation by Paco2 is above normoxic le~ el;~-~ the exact position of this threshold is also dependent on the concomitant values of Paco, and arterial The thresholds of individual chemoreceptor fibers appear to differ.The lower the arterial Po,, the greater is the chemoreceptor activity. The stimulus-response curve based on the study of the mass-discharge rate of the carotid nerve is S-shaped and the rate of firing culminates at values of Pao, around 25-40 mm. Hg. 7~* The threshold to carbon dioxide stimulation is below 30 mm. Hg20 3- Increasing I’aco, up to high values increases the chemoreceptor activity. As with O2 stimulation, the stimulus-response curve to C02 is S-shaped. 8