The largest lymphoid organ of the body, which filters blood and removes worn out red blood cells, is the
- A. tonsils
- B. spleen
- C. thymus
- D. lymph node
Explanation
The spleen sits in the abdomen and acts on blood the way lymph nodes act on lymph, trapping pathogens and recycling old erythrocytes. Its size and blood filtering role distinguish it from the other lymphoid organs.