[Effect of catecholamines in blood flow in arteries of distribution].
In large arteries, distributing blood to an area (hind leg of dog), the vasomotor substances (catecholamines) induce differences in flow. In case of state of vasoconstriction, the mean velocity of flow decreases, while the amplitude of pulsatile flow and the pressure increase. The radial expansion is wider. In case of state of dilatation, inverse reactions are observed.
D000818:Animals; D001783:Blood Flow Velocity; D004285:Dogs; D005263:Femoral Artery / Q000187:drug effects / Q000502:physiology*; D007545:Isoproterenol / Q000494:pharmacology*; D009638:Norepinephrine / Q000494:pharmacology*
D007545:Isoproterenol; D009638:Norepinephrine
Influence des catécholamines sur l'écoulement du sang dans les artères de distribution.