ATI RN
Immune System NCLEX Questions Quizlet Questions
Question 1 of 5
Which of these does NOT act as a protecting barrier for the body surface?
Correct Answer: C
Rationale: Salivary amylase digests, not protects; mucus , skin , and acid are barriers.
Question 2 of 5
One reason that pathogenic microorganisms have an advantage in the host they infect is because they:
Correct Answer: D
Rationale: Pathogens reproduce and evolve rapidly, outpacing the host's immune elimination, unlike prior exposure or immune strengthening.
Question 3 of 5
A person with anti-A and anti-B antibodies in their blood has what blood type?
Correct Answer: D
Rationale: Type O has anti-A and anti-B antibodies; A , B , and AB lack these.
Question 4 of 5
T cytotoxic cells produce cytokinins which cause the lysis of other target cells.
Correct Answer: A
Rationale: Cytotoxic T cells release cytokines (e.g., perforins) to lyse cells; cytokinins are plant hormones, likely a typo.
Question 5 of 5
The stimulation of antigen-specific T-cells by appropriately presented antigen, alone results in _____________.
Correct Answer: C
Rationale: T-cell stimulation leads to proliferation; allergies need more factors. Note: Sol says A, but C is standard.