[Effect of potassium ions on the reactions of resistive and capacitive vessels in the skeletal muscles and intestines].

L. a. administration of 4.2% KCl was followed by contractile responses of the resistance intestinal vessels, whereas contractile-dilatatory responses were observed in the skeletal muscles. The intestinal capacitance vessels responded with insignificant increase of the venous outflow, while the contractile-dilatatory responses of the resistance vessel were not followed by any increase of the venous outflow in skeletal muscles. After papaverin administration, contractile responses of the resistance intestinal vessels were insignificant, while the contractile-dilatatory responses of the skeletal muscles resistance vessels became contractile only. After noradrenaline injections only contractile responses were observed in the resistance intestinal vessels.