ATI RN
Immune System Multiple Choice Questions and Answers PDF Questions
Question 1 of 5
The primary function of the lymphatic system in immune defense includes:
Correct Answer: A
Rationale: It supports antibody production via lymphocytes, not oxygen transport.
Question 2 of 5
Which of the following is NOT a physical barrier that prevents infection?
Correct Answer: C
Rationale: HCl is a chemical barrier, not physical like skin or cilia.
Question 3 of 5
Which of the following is NOT true of T cell activation?
Correct Answer: C
Rationale: T cells do not produce antibodies (B cell role); they produce cytokines.
Question 4 of 5
How are antibody producing cells stimulated?
Correct Answer: B
Rationale: B cells (antibody producers) are stimulated by helper T cells via MHC-II.
Question 5 of 5
Examples of primary mediators released by Mast cells would be
Correct Answer: D
Rationale: Heparin is a preformed primary mediator; cytokines , leukotrienes , and PAF are secondary.