on isolated strips of human saphenous vein , pretreated with 5 microm phenoxybenzamine and contracted with 10 mm kcl , the beta adrenoceptor mediating the relaxant effects of isoproterenol , procaterol and norepinephrine was characterized using the selective beta-1 adrenoceptor antagonist , bisoprolol , and the selective beta-2 adrenoceptor antagonist , ici 118,551 .
C0086418
human
C0001643
beta-2 adrenoceptor