ATI RN
Questions on the Immune System Questions
Question 1 of 5
What are the two pieces of information required for a Th cell to make a decision about which cytokines to produce?
Correct Answer: A
Rationale: Th cells decide cytokines based on invader type and location ; virulence , duration , and damage are less specific.
Question 2 of 5
Which of these is not a non-specific defense mechanism?
Correct Answer: C
Rationale: Antibodies are specific defenses; bacteria aren't defenses, stomach pH and sebaceous glands are nonspecific.
Question 3 of 5
Women with urinary tract infections caused by E. coli are generally treated with a course of antibiotics. A common complication of the antibiotic treatment is the occurrence of a vaginal yeast infection caused by Candida albicans, an organism that is normally present in very low numbers in the human vaginal tract. This complication occurs because:
Correct Answer: D
Rationale: Antibiotics disrupt commensal bacteria, allowing Candida overgrowth ; epithelium damage , adhesion , or selective killing don't explain this.
Question 4 of 5
The innate immune response together with antibodies are generally not effective at clearing infections established by pathogens that replicate inside host cells. The evolution of T cells has provided a means for the immune response to 'see' intracellular infections based on the ability of T cells to:
Correct Answer: D
Rationale: T cells detect intracellular pathogens via MHC-peptide complexes ; cytokines , interferon , or inflammation are indirect.
Question 5 of 5
Innate behaviors are
Correct Answer: A
Rationale: Innate behaviors are genetically determined and consistent across a species, not influenced by sociobiology or the environment in their basic execution.