C3a and C5a are involved in
A) inflammation AND fever.
B) interferon production AND attraction of phagocytes.
C) properdin activation AND inflammation.
D) attraction of phagocytes AND properdin activation.
E) inflammation AND attraction of phagocytes.

Question

Quizplus · Accepted Answer

C3a and C5a are both anaphylatoxins that are involved in promoting inflammation and attracting phagocytes to sites of infection or injury. They do not play a role in fever or interferon production, and while C3 interacts with properdin during the complement cascade, C3a and C5a do not play a direct role in its activation. Therefore, the best choice is E, inflammation and attraction of phagocytes.

C3a and C5a Are Involved in