Bradykinin is for
Ref Robbins 8/e p65; 7/e p45,9/e p89 Bradykinin is a potent endothelium-dependent vasodilator and mild diuretic, which may cause a lowering of the blood pressure. It also causes contraction of non-vascular smooth muscle in the bronchus and gut, increases vascular permeability and is also involved in the mechanism of pain.
Pain
Vasodilation
Vasoconstriction
Increase in vascular permeability
General anatomy