In a type III hypersensitivity reaction, the harmful effects after the immune complexes that are deposited in tissues are a result of what?
A)Cytotoxic T cells
B)Natural killer cells
C)Complement activation
D)Degranulation of mast cells

Question

Quizplus · Accepted Answer

Complement activation, particularly through the generation of chemotactic factors for neutrophils, causes the harmful effects of immune complex deposition. The neutrophils bind to antibody and C3b contained in the complexes and attempt to ingest the immune complexes. Type III hypersensitivity reactions as described are not the result of cytotoxic T cells, natural killer cells, or degranulation of mast cells.

In a Type III Hypersensitivity Reaction, the Harmful Effects After