ATI RN
Questions on Immune System Questions
Question 1 of 5
Which cells in the spleen's white pulp respond to antigens?
Correct Answer: B
Rationale: Lymphocytes in white pulp respond to antigens; RBCs , macrophages , and platelets are in red pulp.
Question 2 of 5
The adaptive immune system is distinguished by:
Correct Answer: C
Rationale: Adaptive immunity has memory; speed and nonspecificity are innate, inflammation is both.
Question 3 of 5
What is the term for immunity from maternal antibodies?
Correct Answer: C
Rationale: Natural passive is from maternal antibodies; active (A, B) involves own response, artificial passive is injected.
Question 4 of 5
The complement system enhances immunity by:
Correct Answer: B
Rationale: Complement opsonizes pathogens; antibodies are B cells, killing is T cells, activation is cytokines.
Question 5 of 5
What is the role of T-regulatory cells?
Correct Answer: C
Rationale: T-regulatory cells suppress; killing is cytotoxic T, antibodies are B cells, phagocytosis is macrophages.