[Changes in the diameter of organ arteriovenous anastomoses during pressor reflexes]

In acute experiments on cats, the diameter changes of the arterio-venous anastomoses in a number of vascular zones and their shunting coefficient were studied under the pressor reflexes; the method of injections of the microspheres was used. In these experiments the shunting capacity of the arterio-venous anastomoses was shown to be decreased in the small intestine, the spleen, the kidney and the gastrocnemius muscle under the pressor synocarotid reflex and the electrical stimulation of the somatic afferents.