[Changes in the major circulation vessel capacity and their role in forming the venous return shifts under the effect of catecholamines].
The study relates to characteristics of the major circulation vessel capacity and their part in forming the venous return shifts under the effect of catecholamines. In anesthetized cats, using the developed technique of controlled experiment enabling to stabilize the blood flow in the circulation arterial segment, fulfilling of pressor responses to i. v. administration of noradrenaline, adrenaline was found to increase the venous return, on the average, by 40% by means of changes in the major circulation vessel capacity (its venous segment, mainly). About 5% of the blood volume seems to become mobilized in the animal organism.
A V
AV
Samoĭlenko
A Iu
AIu
Iurov
D000818:Animals; D001783:Blood Flow Velocity / Q000187:drug effects*; D001810:Blood Volume / Q000187:drug effects*; D002415:Cats; D004837:Epinephrine / Q000494:pharmacology*; D009638:Norepinephrine / Q000494:pharmacology*; D014662:Vasoconstrictor Agents / Q000494:pharmacology*
D014662:Vasoconstrictor Agents; D009638:Norepinephrine; D004837:Epinephrine