ATI RN
Immune System Multiple Choice Questions Questions
Question 1 of 5
What is the primary function of the right lymphatic duct?
Correct Answer: B
Rationale: The right lymphatic duct drains the right upper body; thoracic duct drains left , filtering is nodes.
Question 2 of 5
What is the role of MHC class I molecules?
Correct Answer: C
Rationale: MHC I presents to cytotoxic T cells; MHC II is for T-helper, B cells use BCR, complement is separate.
Question 3 of 5
The thymus produces which hormone?
Correct Answer: B
Rationale: Thymosin aids T cell maturation; insulin is pancreas, cortisol and adrenaline are adrenal.
Question 4 of 5
What is the term for immunity from breast milk?
Correct Answer: C
Rationale: Natural passive is from breast milk; active (A, B) involves own response, artificial passive is injected.
Question 5 of 5
With regard to secondary lymphatic nodules: They form following 'antigen-independent differentiation'.
Correct Answer: B
Rationale: Secondary lymphatic nodules form following antigen-dependent differentiation, not antigen-independent, which occurs in primary lymphoid organs like the thymus.