Verapamil decreased only the norepinephrine or urotensin II induced contraction during the presence of extracellular Ca2+, with little or no modify from the contraction in Ca2+-free buffer. The urotensin I induced relaxation reaction in aortic strips contracted by forty mM KCl was Increased by pretreatment with papaverine or forskolin. Pretreatment https://motherv110iue3.theideasblog.com/profile