Verapamil decreased only the norepinephrine or urotensin II induced contraction from the existence of extracellular Ca2+, with little or no adjust in the contraction in Ca2+-free buffer. The urotensin I induced rest response in aortic strips contracted by 40 mM KCl was enhanced by pretreatment with papaverine or forskolin. Pretreatment https://thomasw111lxi4.wikiconversation.com/user