Objective: To explore effect of high-frequency electrical stimulation of extracellular (high frequency stimulation, HFS) on morphology and metabolism of sympathetic PC12 cells.
目的：研究细胞外高频电刺激(HFS)对PC 12类交感神经细胞的形态及代谢水平的影响。
2
An attack of RP may also occur after stimulation of the sympathetic nervous system (such as emotional stress, sudden startling).
雷诺现象的发作也可出现在交感神经系统刺激之后(如情绪紧张，突然惊吓)。
3
Electrical stimulation in the same intensity to cervical sympathetic trunks in guinea pigs only caused the heart rate to quicken but had hardly effects on respiratory activities.