神经细胞对于缺氧十分敏感。电生理学的研究证明:一个神经细胞,在完全剥夺了它的氧气供应以后,在十几秒钟以内就开始表现出电位变化,90秒钟以后即完全丧失了一切电活动的迹象。但是,神经细胞功能对于缺氧的敏感,并不等于说,它的功能丧失是不可逆的。例如,神经化学家往往使用在温箱内培育的脑切片作为材料,研究神经细胞的呼吸代谢作 Nerve cells are very sensitive to hypoxia. Electrophysiology studies have shown that a nerve cell begins to show a change in potential within a few seconds after it completely deprives it of its oxygen supply, completely losing all signs of electrical activity after 90 seconds. However, the sensitivity of neuronal function to hypoxia does not mean that its loss of function is irreversible. For example, neurochemists often use brain sections incubated in incubators as a material to study the respiratory metabolism of nerve cells