ATI RN
Good Questions About the Immune System Questions
Question 1 of 4
Identify the class of antibody that crosses the placenta.
Correct Answer: D
Rationale: IgG crosses the placenta, providing fetal immunity.
Question 2 of 4
Regarding cytokines
Correct Answer: B
Rationale: Cytokines have overlapping (redundant) roles; they target multiple cells , act in innate and adaptive , and can inhibit .
Question 3 of 4
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.
Question 4 of 4
When a micro-organism displays surface antigen which is very similar in structure to a particular MHC molecule this may result in the development of autoimmunity through the mechanism of:
Correct Answer: A
Rationale: Molecular mimicry causes autoimmunity via similar antigens; dissimilarity prevents, revolt and antibody mimicry are not terms.