Chemicals responsible for the dilation and increased permeability of blood vessels in allergic reactions are called
A) antigens.
B) antibodies.
C) histamines.
D) lymphocytes.

Question

Quizplus · Accepted Answer

The chemicals responsible for the dilation and increased permeability of blood vessels in allergic reactions are called histamines. Antigens are foreign substances that stimulate an immune response. Antibodies are proteins produced by the immune system to recognize and neutralize foreign substances. Lymphocytes are types of immune cells that can recognize and attack foreign substances.

Chemicals Responsible for the Dilation and Increased Permeability of Blood