The spleen's red pulp is primarily involved in

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ATI RN Test Bank

The spleen's red pulp is primarily involved in:

A. Filtering lymph B. Destroying old red blood cells C. Producing lymphocytes D. Storing lymph

Correct Answer: B

Rationale: Red pulp destroys old RBCs; lymph filtering is lymph nodes, lymphocytes are in white pulp, and lymph storage is not a spleen function.

The lymphatic system interacts with the circulatory system at:

A. The heart B. The subclavian veins C. The aorta D. The capillaries

Correct Answer: B

Rationale: Lymph enters blood at subclavian veins ; not heart , aorta , or capillaries directly.

The spleen's arterial supply is from which vessel?

A. Celiac trunk B. Renal artery C. Hepatic artery D. Splenic artery

Correct Answer: D

Rationale: The splenic artery supplies the spleen; celiac trunk branches to it, renal and hepatic are separate.

What is the primary role of the spleen's venous sinuses?

A. Filter lymph B. Store blood C. Remove pathogens D. Produce lymphocytes

Correct Answer: B

Rationale: Venous sinuses store blood; filtering is nodes, pathogens are macrophages, lymphocytes are white pulp.

Which immunoglobulin crosses the placenta?

A. IgA B. IgD C. IgE D. IgG

Correct Answer: D

Rationale: IgG crosses the placenta; IgA is in secretions, IgD is on B cells, IgE is for allergies.

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