During the course of a cellular hypersensitivity
a. Antibodies react with antigens in tissues.
b. Serotonin and histamine are released by cells.
c. Immune complexes form on blood vessel surfaces.
d. A skin thickening called an induration may form.
a. Antibodies react with antigens in tissues.
b. Serotonin and histamine are released by cells.
c. Immune complexes form on blood vessel surfaces.
d. A skin thickening called an induration may form.