人体正常时频繁地通过颈动脉窦的压力感受器进行升压或减压的血压调节,颈动脉窦压力感受器的刺激多为血管壁的机械牵张。动脉压升高,颈动脉窦的管壁扩张到一定程度时,压力感受器兴奋并经传入神经将兴奋传到中枢的孤束核,中枢兴奋后再经传出神经使迷走神经活性增强,引起心率减慢,血管扩张,最终血压下 Frequent human body pressure through the carotid sinus baroreceptor pressure regulation or decompression of blood pressure, carotid sinus baroreceptor stimulation mostly vascular mechanical stretch. Arterial pressure increased, the carotid sinus tube wall expansion to a certain extent, the excitement of the baroreceptors and the afferent nerve will be excitement spread to the central solitary tract nucleus, the central nervous excitement and then by the efferent nerve vagus activity increased, causing heart rate Slow down, vasodilation, and finally blood pressure