Question

which of the following is not true of the spleen?
a the spleen contains a large population of macrophages.
b the spleen produces new erythrocytes.
c the spleen is not a vital organ; a person can live without a spleen.
d the spleen consists of slow - moving blood sinuses.

Explanation:

The bone - marrow, not the spleen, is responsible for producing new erythrocytes (red blood cells). The spleen does contain macrophages, is not a vital organ, and has slow - moving blood sinuses.

Answer:

B. The spleen produces new erythrocytes.