title: [Blood flow velocity--a constantly acting factor in dilatation of the large arteries].
abstract: Acute experiments on cats have demonstrated the presence of renal artery sensitivity to the bloodstream velocity; the artery is enlarged with the blood flow increase and is narrowed with its decrease. The dilatation of the artery caused by the double increase of the blood flow (from 20 to 40 ml/min) is 23 +/- 8%. It has been established experimentally that carotid, femoral and renal arteries of cats respond to minor changes (of the order of 1 ml/min) in the volumetric velocity of the bloodstream by changing their diameters. Therefore, the arteries continuously follow the bloodstream velocity changes by changing their diameters. It may thus be concluded that the bloodstream itself is the artery dilatation factor.
authors.forename: A M
authors.initials: AM
authors.lastname: Mel'kumiants
authors.forename: S A
authors.initials: SA
authors.lastname: Balashov
mesh_terms: D000818:Animals; D001158:Arteries / Q000502:physiology*; D001783:Blood Flow Velocity; D002339:Carotid Arteries / Q000502:physiology; D002415:Cats; D005263:Femoral Artery / Q000502:physiology; D012077:Renal Artery / Q000502:physiology; D012212:Rheology; D014664:Vasodilation
vernacular_title: Skorost' krovotoka--postoianno deĭstvuiushchiĭ faktor dilatatsii krupnykh arteriĭ.