大黄对整个结肠的电活动有明显的兴奋作用。兴奋的特点为群集性放电。锋电频率明显增快,辐度明显增高,收缩活动增强。大黄对十二指肠也有兴奋作用,使锋电频率增快,而对空肠几乎没有影响。此外,还观察到阿托品可阻断大黄对肠管的兴奋效应。 Rhubarb has a clear excitatory effect on the electrical activity of the entire colon. Excitement is characterized by a cluster discharge. The frequency of frontal electricity was significantly faster, the amplitude was significantly higher, and the contraction activity was enhanced. Rhubarb also has an excitatory effect on the duodenum, which increases the frontal frequency and has little effect on the jejunum. In addition, it was also observed that atropine blocks the excitatory effect of rhubarb on the bowel.