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多年来已了解到,大脑的代谢,动脉血气和动脉血压的变化对脑血管有很大的影响,但还不清楚神经因素对脑血管的作用。应激刺激时,交感神经兴奋,产生强烈的收缩作用,使大部分血管床的血流大为减少。交感神经在心血管的自稳状态中具有重要作用,但它是如何保护脑血管的,过去是不清楚的。当我们着手研究交感神经对脑血管的作用时,刺激交感神经能引起脑血管的收缩反应曾
It has been learned over the years that changes in cerebral metabolism, arterial blood gases and arterial blood pressure have a great influence on cerebral blood vessels, but it is unclear whether the neurological effects on cerebral blood vessels. When stimulated by stress, the sympathetic nerves are excited and have a strong contraction effect, which greatly reduces the blood flow in most of the vascular beds. Sympathetic nerve plays an important role in the state of cardiovascular self-stability, but it is unclear how it protects cerebrovascular. When we started to study the role of the sympathetic on the cerebrovascular, sympathetic stimulation can cause cerebral vasoconstriction