The white pulp of the spleen is primarily composed

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The white pulp of the spleen is primarily composed of:

A. Red blood cells B. Lymphocytes C. Macrophages D. Platelets

Correct Answer: B

Rationale: White pulp contains lymphocytes; red pulp has RBCs , macrophages , and some platelets .

Which structure is NOT part of the lymphatic drainage system?

A. Lymph nodes B. Thoracic duct C. Spleen D. Cisterna chyli

Correct Answer: C

Rationale: The spleen filters blood, not lymph; nodes , thoracic duct , and cisterna chyli handle lymph.

What is the primary function of the thoracic duct?

A. Filter lymph B. Drain lymph into blood C. Produce lymphocytes D. Store lymph

Correct Answer: B

Rationale: The thoracic duct drains lymph into blood; filtering is nodes, producing is marrow, storing is minimal.

What is the primary function of lymph node sinuses?

A. Produce lymph B. Filter lymph C. Store lymphocytes D. Remove RBCs

Correct Answer: B

Rationale: Sinuses filter lymph; production is capillaries, storage is cortex, RBCs are spleen.

The spleen's white pulp contains:

A. Red blood cells B. Lymphocytes C. Platelets D. Neutrophils

Correct Answer: B

Rationale: White pulp has lymphocytes; red pulp has RBCs , platelets , and some neutrophils .

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