After erythrocytes have circulated for about 120 days, they are removed by macrophages, which are mainly in the:

After erythrocytes have circulated for about 120 days, they are removed by macrophages, which are mainly in the:

After erythrocytes have circulated for about 120 days, they are removed by macrophages, which are mainly in the:




A) liver.
B) spleen.
C) appendix.
D) bone marrow.



Answer: B