The Secretion of Histamine by Mast Cells Causes

Question

The secretion of histamine by mast cells causes
A) vasodilation, bringing phagocytic cells to the site of infection.
B) invading bacterial cells to lyse.
C) invading bacterial cells to coagulate.
D) all of these.
E) none of these.

Accepted Answer

Histamine release from mast cells primarily causes vasodilation, which increases blood flow to the affected area, bringing more phagocytic cells (like white blood cells) to the site of infection to fight off pathogens.