ATI RN
Immune System Multiple Choice Questions Questions
Question 1 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 2 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 3 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.
Question 4 of 5
Describe the filtration of lymph and indicate the pathway of filtration on your diagram.
Correct Answer: A
Rationale: Lymph enters via afferent vessels , flows into the subcapsular sinus , passes through paratrabecular to medullary sinuses , and exits via efferent vessels , filtering pathogens along the way.
Question 5 of 5
is noncapsulated with aggregation of lymphocyte
Correct Answer: B
Rationale: Lymphatic nodules are non-capsulated lymphocyte aggregations; diffuse lymphocytes are scattered, not aggregated.