Which of the following statements about the spleen is false?...

Which of the following statements about the spleen is false?
a) It routinely produces new blood cells.
b) It cleanses the blood of foreign material and damaged cells.
c) It contains $B$ cells.
d) It consists of red pulp and white pulp.
e) It enlarges in a number of infectious diseases.

Key Concepts

Spleen Functions

The spleen is a multifunctional organ primarily involved in filtering blood, removing old or damaged red blood cells, and clearing foreign materials such as bacteria and debris. It also plays a key role in the immune system by housing lymphocytes that help in the immune response.

Hematopoiesis

Hematopoiesis is the process of forming new blood cells, which typically occurs in the bone marrow in adults. While the spleen can contribute to blood cell production during fetal development or under pathological conditions, it is not the routine site of hematopoiesis in a healthy adult.

Splenic Anatomy

The spleen is composed of two main types of tissue known as red pulp and white pulp. Red pulp is involved in filtering blood and recycling old red blood cells, whereas white pulp is rich in lymphocytes like B cells and plays a major role in the immune response.

Immune Cells in the Spleen

The spleen contains immune cells, including B cells, that are crucial for mounting an appropriate immune response against pathogens. The organization of these cells in the white pulp is essential for the spleen’s role in monitoring and responding to infections.

Splenomegaly

Splenomegaly refers to the enlargement of the spleen, which can occur in a variety of conditions, including infections, inflammatory diseases, and hematologic disorders. This enlargement often indicates an active response to systemic disease or infection.

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