Study nature nerve fibers causes of increased abbreviations duodenal during stimulation of the sympathetic nerve

In experiments on dogs showed that stimulyatornye reactions induced by electrical stimulation of the sympathetic nerve on the background of a joint blockade of α-adrenergic fentolaminom and β-adrenoceptor propranolol almost completely eliminated lizergolom-blocker S1, 2 receptors. In this introduction lizergola had no significant effects on both the background motor activity of duodenal ulcer, and on the function of the vagus nerve. Concluded that the effector neuron with which realized stimulyatorny phenomenon is serotonin, its effects are carried out with the help of S1, 2 - receptors of smooth muscles