How does the spleen contribute to immunity?.
It produces interferon.
It screens passing blood for foreign antigens.
It produces immunoglobulins.
It produces B and T lymphocytes.
The Correct Answer is B
Choice A rationale:
The spleen does not produce interferon.
Choice B rationale:
The spleen screens passing blood for foreign antigens, which is part of its role in immune response.
Choice C rationale:
The spleen does not produce immunoglobulins.
Choice D rationale:
The spleen does not produce B and T lymphocytes.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
After passing through the glottis, inspired air does not travel to the pharynx. The pharynx is actually before the glottis in the airway.
Choice B rationale:
Inspired air does not travel directly to the bronchi after passing through the glottis.
Choice C rationale:
Inspired air does not travel directly to the alveoli after passing through the glottis.
Choice D rationale:
After passing through the glottis, inspired air travels to the larynx.
Correct Answer is D
Explanation
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.
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