What is not caused by platelet activating factor?
Vasoconstriction
Bronchodilation
Causes platelet aggregation
Transmits signals between cells
Ans. (b) Bronchodilation(Ref: R 9th/pg 89; 8th/pg 59)PAFProduced by: platelets, basophils, mast cells, neutrophils, macrophages, and endothelial cellsFunctions: platelet aggregation, vasoconstriction and bronchoconstriction. QAt low concentrations it induces vasodilation and increased venular permeabilityTransmits signals between cells
Chemical Mediators and Regulators of Inflammation