...-hepatic portal venous vascular resistance were observed. Also the effects of these drugs on certain local vasomotor responses of the hepatic arterial bed (reactive hyperemia, autoregulation and reciprocity response to shunting of portal inflow) were also studied. Inhibition of vasodilator responses...

...H. Henrich Adrenergic-induced vasoconstrictions are succeeded by an adjustment reaction (‘escape phenommenon’ or ‘autoregulatory escape’) and after the end of stimulation by a postconstrictive dilation (‘reactive hyperemia’)- These vascular reactions have been examined on the intact mesenteric...