[Reactions of the volume vessels of skeletal muscles to adrenergic stimulation at different levels of venous pressure].
In cats, during perfusion of the shank with a constant blood volume and in artificial changing of the venous pressure, the electric stimulation of the lumbal sympathetic chains and administration of noradrenaline in the perfusate were shown to be able to evoke both the constrictory and the dilatory responses of the capacitance vessels against the background of constriction of the resistance vessels. The 10--15 mm Hg venous pressure was optimal for the constrictory responses of the shank capacitance vessels. At the extreme levels of venous pressure (0;5 and 20;25 mm Hg), the relative weight of dilatory responses of the capacitance vessels was increased in the sum total of responses to the used adrenergic effects.
D000818:Animals; D001808:Blood Vessels / Q000294:innervation / Q000502:physiology*; D002415:Cats; D004558:Electric Stimulation; D009132:Muscles / Q000098:blood supply*; D009638:Norepinephrine / Q000494:pharmacology*; D014666:Vasomotor System / Q000502:physiology*; D014690:Venous Pressure
D009638:Norepinephrine
Reaktsii emkostnykh sosudov skeletnoĭ muskulatury na adrenergicheskie vozdeĭstviia pri razlichnykh urovniakh venoznogo davleniia