Aged and Damaged Erythrocytes are Broken Down by Macrophages in The

Question

Aged and damaged erythrocytes are broken down by macrophages in the
A) spleen.
B) liver.
C) bone marrow.
D) digestive tract.
E) spleen, liver, and bone marrow.

Accepted Answer

Aged and damaged erythrocytes are broken down by macrophages primarily in the spleen, but also in the liver and bone marrow. Therefore, the best choice is E, which includes all three organs where erythrocyte breakdown occurs. The digestive tract is not involved in erythrocyte breakdown.