[The vagus regulation of the electrical activity of the contractile apparatus in the small intestine of rats under normal and pathological conditions].

The role of parasympathetic division of the vegetal nervous system in regulation of the small intestine motor activity under the normal and pathological conditions was estimated using multifactorial quantitative analysis of the electrical activity of its smooth muscle under the conditions of vagotomy, chronic duodenal ulcer and their combination. Switching off the intestine vagal innervation led to its weakened and altered motor activity, most pronounced on the 3rd and 30th day. Development of the duodenal ulcer is accompanied by the increased motor activity of the intestine with the spasm phenomena, later complemented by disturbed activity of the pacemaker and disturbed myogenic distribution of the electric complex (the most pronounced changes have been noted on the 10th, 40th and 230th day). Vagotomy under the condition of duodenal ulcer normalizes (relaxes) the small intestine motor activity.