Aged red blood cells are destroyed by macrophages in the:
A) Tonsils
B) Lymph nodes
C) Peyer's patches
D) Splenic red pulp

Question

Quizplus · Accepted Answer

The splenic red pulp is the area where aged red blood cells are destroyed by macrophages, while the white pulp is the area where T and B cells interact with cells presenting antigen from blood-borne pathogens. The tonsils and Peyer's patches are both areas of mucosal-associated lymphoid tissue (MALT), which are areas that interact with pathogens that have breached the mucosal barriers, but have no role in red blood cell destruction. Lymph nodes serve a similar function to the spleen, acting as a filter for pathogens in the tissue. However, the lymph nodes do not have an area of red cell destruction as the spleen does.

Aged Red Blood Cells Are Destroyed by Macrophages in The