ATI RN
Questions on the Immune System Questions
Question 1 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 2 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 3 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.
Question 4 of 5
Which of the following is an immediate effect of histamine release?
Correct Answer: A
Rationale: Histamine causes vasodilation, increasing blood flow to the injury site, not blocking pollen responses, converting to histidine, or raising blood pressure.
Question 5 of 5
Which of the following statements regarding monoclonal antibodies is false?
Correct Answer: D
Rationale: Monoclonal antibodies are identical, binding one antigen, not a mix of different antibodies, making D false; others are true applications.