Heparin and histamine from mast cells function to directly cause

Question

Quizplus · Accepted Answer

Heparin and histamine both function to cause vasodilation by relaxing the smooth muscle in the walls of blood vessels. This allows for increased blood flow to the affected area, which can help to bring immune cells and nutrients to the site of injury or infection. Option A is incorrect because the conversion of fibrinogen to fibrin is actually caused by the activation of thrombin. Option B is incorrect because neutrophils are not directly stimulated by heparin or histamine. Option C is incorrect because heparin and histamine both cause vasodilation, not vasoconstriction.

Heparin and Histamine from Mast Cells Function to Directly Cause