ATI RN
Lymphatic System Quiz Questions Questions
Question 1 of 5
Which cells in lymph nodes are activated by antigens?
Correct Answer: B
Rationale: Lymphocytes are activated by antigens; macrophages present, neutrophils and eosinophils fight infection.
Question 2 of 5
The innate immune system is characterized by:
Correct Answer: C
Rationale: Innate immunity responds quickly but lacks specificity and memory ; antibodies are adaptive.
Question 3 of 5
What is the role of natural killer (NK) cells?
Correct Answer: C
Rationale: NK cells kill abnormal cells; antibodies are B cells, phagocytosis is macrophages, presentation is dendritic cells.
Question 4 of 5
The spleen's marginal zone traps:
Correct Answer: B
Rationale: The marginal zone traps blood antigens; lymph is nodes, fluid is lymphatics, platelets are stored.
Question 5 of 5
What is the term for immune overreaction to self-antigens?
Correct Answer: B
Rationale: Autoimmunity is self-overreaction; allergy and hypersensitivity are to external, tolerance is non-response.