Antibodies passed on to the fetus through the placenta represent?.
Naturally acquired active immunity.
Artificially acquired passive immunity.
Innate immunity.
Natural passive immunity.
The Correct Answer is D
Naturally acquired active immunity occurs when the body produces antibodies in response to an infection or vaccine. This is not the case for antibodies passed through the placenta.
Choice B rationale:
Artificially acquired passive immunity involves the injection of antibodies, not the transfer through the placenta.
Choice C rationale:
Innate immunity refers to nonspecific defense mechanisms that come into play immediately or within hours of an antigen’s appearance in the body. This does not describe the process of antibody transfer through the placenta.
Choice D rationale:
Natural passive immunity occurs when antibodies are passed from the mother to the fetus through the placenta. This matches the description in the question.
So, the correct answer is Choice D, after analyzing all choices.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Inhaled food or foreign objects are most likely to lodge in the right bronchus because it is wider and more vertical than the left.
Choice B rationale:
While it is possible for objects to lodge in the left bronchus, it is less common due to its narrower and less vertical structure.
Choice C rationale:
Bronchioles are smaller structures within the respiratory system where foreign objects are less likely to lodge.
Choice D rationale:
The pharynx is not the most common location for inhaled food or foreign objects to lodge.
Correct Answer is B
Explanation
The correct answer is Choice B.
Choice A rationale:
Venules are small vessels that collect blood from the capillaries and transport it to the veins. They are not primarily involved in the exchange of nutrients, wastes, and hormones.
Choice B rationale:
Capillaries are tiny vessels that branch out from arterioles to form networks around body cells. They are the primary sites for the exchange of gases, nutrients, and waste between blood and tissues.
Choice C rationale:
Arterioles are small branches of arteries that lead to capillaries. They primarily regulate blood pressure and blood flow, not the exchange of substances.
Choice D rationale:
Veins carry deoxygenated blood back to the heart. They are not the primary sites for substance exchange.
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