A reliable sign of infection is pus,which is also a sign that a defensive immune reaction is taking place.An analysis of pus would show it to be composed of which of these infection fighting agents?
A)Necrotic cells
B)Tissue macrophages
C)Histamine
D)Red blood cells
E)Interstitial fluids

Question

Quizplus · Accepted Answer

Pus is composed of dead tissue debris, white blood cells (particularly neutrophils), and other infection-fighting agents such as macrophages. Necrotic cells are dead cells that result from tissue damage, but they do not actively participate in the immune response. Histamine is a chemical released in response to an allergic reaction, and not necessarily present in pus. Red blood cells and interstitial fluids are not usually present in pus.

A Reliable Sign of Infection Is Pus,which Is Also a Sign