ATI RN
Immune System NCLEX Questions Quizlet Questions
Question 1 of 5
Where does mesothelioma develop?
Correct Answer: C
Rationale: Mesothelioma develops in the pleura , the lung's lining, due to asbestos exposure; not in alveoli , bronchi , or trachea .
Question 2 of 5
How do cytotoxic T cells (CTLs) kill infected cells?
Correct Answer: C
Rationale: CTLs use perforin, granzyme B, and FasL to trigger apoptosis ; antibodies are B-cell products, cytokines are secondary.
Question 3 of 5
What is the role of the thymus in protecting the body against disease?
Correct Answer: B
Rationale: The thymus matures T lymphocytes and produces thymosin ; it doesn't recycle , mature B cells (C, bone marrow), or produce macrophages/monocytes .
Question 4 of 5
When macrophages in a tissue encounter bacteria, they release cytokines that induce an inflammatory response. These cytokines act on other immune cells, to recruit them to the site of infection and to enhance their activities. In addition, these cytokines act on the endothelial cells of the blood vessel wall to:
Correct Answer: A
Rationale: Cytokines increase endothelial permeability for immune cell extravasation; tightening junctions , proliferation , or microbicidal action aren't primary effects.
Question 5 of 5
Even when the complement cascade fails to proceed beyond generating the C3 convertase, complement activation is effective at inducing pathogen uptake and destruction. This process of immune protection is mediated by:
Correct Answer: C
Rationale: C3b and fragments (iC3b) engage phagocyte complement receptors for uptake ; not inhibitory , proteases , or B cells .