on the cat middle cerebral artery in vitro ( but not the basilar artery ) , under resting tension and when contracted with 5-hydroxytryptamine ( 5-ht ) or kcl , concentration related relaxations were produced by bk , m-l-bk , and des-arg9-bk , this being the order of relative potency of the three kinins .
C0006100
bk
C0022714
kinins