ATI RN
Lymphatic System Multiple Choice Questions and Answers Questions
Question 1 of 5
A patient has an auto immune disease .it may be due to a defect in the lymphocytes produced in the:
Correct Answer: D
Rationale: Autoimmune diseases may stem from defective T-cell selection in the thymus , a primary lymphoid organ.
Question 2 of 5
Can T cells undergo hypermutation to change their affinity?
Correct Answer: B
Rationale: T cells don't undergo somatic hypermutation ; that's a B-cell process for antibody affinity.
Question 3 of 5
What is the purpose of autophagy in the presentation of self peptides by MHC II molecules in the thymus?
Correct Answer: C
Rationale: Autophagy enables MHC II to present intracellular self-peptides ; not foreign , tissue-specific is broader, MHC I uses TAP.
Question 4 of 5
Which of these would not be found in lymph fluid?
Correct Answer: D
Rationale: Erythrocytes are in blood, not lymph; proteins , ions , and neutrophils are present in lymph fluid.
Question 5 of 5
Several subsets of innate lymphoid cells (ILCs) have been identified that share their patterns of cytokine production with the known subsets of T cells. The combined activity of related ILC and T cell subsets is effective in eradicating pathogenic infections because:
Correct Answer: B
Rationale: ILCs respond early, followed by specific T cells ; ILCs aid killing , don't solely activate B cells , or migrate to nodes .