ATI RN
Lymphatic System Review Questions Questions
Question 1 of 5
Which structure is a dilated sac at the thoracic duct's origin?
Correct Answer: B
Rationale: Cisterna chyli is the dilated sac; right duct is separate, trunks feed it, vein is endpoint.
Question 2 of 5
Which structure traps pathogens in the throat?
Correct Answer: A
Rationale: Tonsils trap throat pathogens; spleen filters blood, thymus matures T cells, nodes filter lymph.
Question 3 of 5
Which cells mediate type I hypersensitivity?
Correct Answer: C
Rationale: Mast cells mediate type I via IgE; T and B cells are adaptive, neutrophils are innate.
Question 4 of 5
Which cells are key to immune surveillance?
Correct Answer: C
Rationale: NK cells monitor for abnormal cells; B and T cells are adaptive, macrophages phagocytose.
Question 5 of 5
Which cytokine promotes allergic responses?
Correct Answer: B
Rationale: IL-4 promotes allergies; IL-2 boosts T cells, IL-6 aids B cells, TNF-alpha inflames.