The spleen
A) filters damaged red blood cells from the blood.
B) changes undifferentiated lymphocytes into competent lymphocytes.
C) is necessary for life. It can't be removed without causing death.
D) produces several different hormones with unknown function.
E) has additional digestive functions.

Question

Quizplus · Accepted Answer

The spleen filters damaged red blood cells from the blood, acting as a blood filter and playing a role in immune response. It does not change undifferentiated lymphocytes into competent lymphocytes (that's a primary function of the thymus), it is not necessary for life as individuals can live without a spleen (though they may be more susceptible to infections), it does not produce several different hormones with unknown functions, and it does not have digestive functions.

The Spleen