The HIV virus invades:.
Helper T cells (CD4 cells) eventually destroying them.
D cells.
B cells.
Helper C cells.
The Correct Answer is A
Choice A rationale:
HIV invades various immune cells, most notably CD4+ T cells, eventually destroying them.
Choice B rationale:
D cells are not a recognized category of immune cells, and HIV does not specifically invade them.
Choice C rationale:
While B cells are part of the immune system, HIV primarily targets CD4+ T cells, not B cells.
Choice D rationale:
Helper C cells are not a recognized category of immune cells, and HIV does not specifically invade them.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
hoice A rationale:
Cilia do not propel air into the lungs, they are involved in moving mucus and trapped particles.
Choice B rationale:
Cilia do not trap food or prevent its entry into the windpipe. This is the role of the epiglottis, not cilia.
Choice C rationale:
Cilia in the airways help to propel trapped debris and mucus upward to be expelled by the body.
Choice D rationale:
Cilia do not have a role in olfaction or the sense of smell.
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.
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