The spleen's marginal zone separates

ATI RN

ATI RN Test Bank

The spleen's marginal zone separates:

A. Red and white pulp B. Arteries and veins C. Lymph and blood D. Capillaries and sinuses

Correct Answer: A

Rationale: The marginal zone separates red and white pulp; others (B, C, D) are unrelated.

Which cells are agranulocytes?

A. Neutrophils B. Eosinophils C. Lymphocytes D. Basophils

Correct Answer: C

Rationale: Lymphocytes are agranulocytes; neutrophils , eosinophils , and basophils are granulocytes.

Which cells are key to type IV hypersensitivity?

A. B cells B. T cells C. Mast cells D. Neutrophils

Correct Answer: B

Rationale: T cells mediate type IV (delayed); B cells are humoral, mast cells are type I, neutrophils are innate.

Which cytokine enhances macrophage activity?

A. IL-2 B. IL-4 C. IFN-gamma D. IL-10

Correct Answer: C

Rationale: IFN-gamma boosts macrophages; IL-2 aids T cells, IL-4 helps B cells, IL-10 suppresses.

White pulp of spleen: Is distinguished by the presence of the 'central artery'.

A. TRUE B. FALSE C. D.

Correct Answer: A

Rationale: The central artery is a defining feature of white pulp, surrounded by lymphoid tissue.

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