<prompt> Bradykinin causesStimulation of the visceral smooth muscleStimulation of the vascular smooth muscleInhibition of the visceral smooth muscIeInhibition of the vascular smooth muscle  <response>: They cause contraction of visceral smooth muscle, but they relax vascular smooth muscle NO, lowering blood pressure. Bradykinin is a potent vasodilator. Ref: Ganongs review of medical physiology 23rd Edition page no.566 