ATI RN
Immune System Multiple Choice Questions Questions
Question 1 of 5
Mast cells
Correct Answer: A
Rationale: Mast cells are bone marrow-derived; they drive type I , release PAF , and don't phagocytose .
Question 2 of 5
Clonal deletion and clonal abortion are examples of mechanisms related to:
Correct Answer: B
Rationale: Clonal deletion/abortion occur in thymus (central); peripheral is post-thymus, periportal is not a term.
Question 3 of 5
Which tonsils are located at the back of the throat?
Correct Answer: A
Rationale: Palatine tonsils are at the throat's back; pharyngeal are in the nasopharynx, lingual at the tongue base, and tubal near the Eustachian tube.
Question 4 of 5
Which lymphoid tissue traps pathogens entering the nasal cavity?
Correct Answer: B
Rationale: Pharyngeal tonsils trap nasal pathogens; palatine and lingual are throat/tongue, Peyer's are intestinal.
Question 5 of 5
Which lymphoid tissue protects the respiratory tract?
Correct Answer: B
Rationale: Tonsils guard the respiratory tract; Peyer's and appendix are gut, spleen is blood.