ATI RN
Immune System Questions and Answers Quizlet Questions
Question 1 of 5
called thymus dependent Zone
Correct Answer: C
Rationale: PALS is the thymus-dependent zone in the spleen, rich in T-lymphocytes.
Question 2 of 5
The lingual tonsils are not commonly inflamed because:
Correct Answer: D
Rationale: Lingual tonsils have ducts opening at crypt bases, reducing inflammation by clearing debris ; location and epithelium don't fully explain (A, B), surface ducts are incorrect .
Question 3 of 5
What is the role of macrophages in the innate immune system?
Correct Answer: C
Rationale: Macrophages engulf pathogens and fuse phagosomes with lysosomes to destroy them ; cytokine production and direct killing are secondary roles.
Question 4 of 5
What are APCs?
Correct Answer: A
Rationale: APCs (antigen-presenting cells) activate T cells ; killing and antibody production are other cell roles, not repair .
Question 5 of 5
Which cell produces IL-10 and TGFB to restrain the immune system?
Correct Answer: B
Rationale: iTreg cells produce IL-10 and TGF-β to suppress immunity ; CD8+ , NK , and neutrophils don't.