ATI RN
Good Questions About the Immune System Questions
Question 1 of 5
How many types of antibodies are there?
Correct Answer: A
Rationale: There are five antibody types: IgG, IgA, IgM, IgE, IgD.
Question 2 of 5
Identify the class of antibody that crosses the placenta.
Correct Answer: D
Rationale: IgG crosses the placenta, providing fetal immunity.
Question 3 of 5
The elderly have a(n) __________ risk of infection and the elderly's response to vaccines ___________.
Correct Answer: D
Rationale: Aging increases infection risk and decreases vaccine efficacy.
Question 4 of 5
Regarding cytokines
Correct Answer: B
Rationale: Cytokines have overlapping (redundant) roles; they target multiple cells , act in innate and adaptive , and can inhibit .
Question 5 of 5
The immunoglobulin that is found predominantly in secretions:
Correct Answer: A
Rationale: IgA dominates secretions; IgD , IgE , IgG , and IgM are not primary in secretions.