In acute experiments on cats, the gastric vascular bed being perfused under constant blood flow, the actions of gastric vessels was investigated using newly elaborated approach to their humoral isolation. Increased doses of noradrenaline elicited the dose-dependent constrictive response of gastric arterial vessels. Perfusion pressure increase in the gastric vascular bed under action of the minimal dose of noradrenaline was more pronounced, than in the intestinal vessels. The capacity of the gastric vascular bed under action of the drug changed in different manner, mostly increased, but could be decreased as well. In contrast to the small intestine the gastric vessels are characterized by more pronounced action of noradrenaline on blood depoting processes.
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