This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Platelets activating factor causes all except 
Select and explain. 
A. Bronchoconstriction, B. Vasoconstriction, C. Decreased vascular permeability, D. Vasodilation
C: Decreased vascular permeability
Answer: C: Decreased vascular permeability 
Explanation: ref Robbins 8/e p60,9/e p73 PAFhas following inflammatory effects Platelets aggregation Vasoconstriction Bronchoconstriction