Which chemical(s)do NOT induce vasodilation and permeability (increased fluid flow)to an infection site?

Question

Quizplus · Accepted Answer

Perforin is a protein involved in the immune response that works by creating holes in the membrane of infected or abnormal cells, leading to their destruction. However, it does not induce vasodilation and increased fluid flow to the infection site. The other choices, histamines, kinins, leukotrienes, and complement, all play a role in the inflammatory response by inducing vasodilation and permeability, allowing immune cells and fluids to reach the site of infection to mount an effective defense.

Which Chemical(s)do NOT Induce Vasodilation and Permeability (Increased Fluid Flow)to