Which type of immunity uses T cells to destroy pathogens within a cell?.
Humoral immunity.
Non-specific immunity.
Cellular immunity.
Passive immunity.
The Correct Answer is C
Choice A rationale:
Humoral immunity involves the production of antibodies by B cells, not the destruction of pathogens within a cell17.
Choice B rationale:
Non-specific immunity refers to innate immune responses that occur regardless of the nature of the pathogen17.
Choice C rationale:
Cellular immunity involves cytotoxic T cells recognizing and destroying infected cells17.
Choice D rationale:
Passive immunity involves the transfer of antibodies from one individual to another, not the destruction of pathogens within a cell17.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Veins do not always carry deoxygenated blood. The pulmonary veins are an exception as they carry oxygenated blood from the lungs to the heart.
Choice B rationale:
Veins do not carry blood away from the heart. They carry blood back toward the heart.
Choice C rationale:
Veins do not have a thick tunica media. The tunica media is thinner in veins than in arteries.
Choice D rationale:
Veins have valves. This is a true statement. The valves in veins prevent blood from flowing backward.
Correct Answer is B
Explanation
Choice A rationale:
Vasodilation increases the diameter of blood vessels, which decreases resistance and thus decreases pressure. However, the increased diameter allows for increased blood flow, not decreased.
Choice B rationale:
Vasodilation decreases pressure due to the increased diameter of the blood vessels, and it increases flow because of the reduced resistance to blood flow.
Choice C rationale:
Vasodilation does not increase pressure; it decreases it.
Choice D rationale:
While vasodilation decreases pressure, it does not decrease flow; it increases it.
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