Which structure collects lymph from the legs?

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ATI RN Test Bank

A. Thoracic duct B. Right lymphatic duct C. Cisterna chyli D. Lymph nodes

Correct Answer: C

Rationale: Cisterna chyli collects leg lymph before the thoracic duct ; right duct is upper body, nodes filter.

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 .

What is the term for self-tolerance failure?

A. Allergy B. Autoimmunity C. Hypersensitivity D. Immunodeficiency

Correct Answer: B

Rationale: Autoimmunity is self-tolerance failure; allergy and hypersensitivity are overreactions, immunodeficiency is weakness.

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