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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The pleural fluid functions by lubricating the space between the pleura, allowing the pleura to glide smoothly during inhalation and exhalation. This cushions delicate lung tissues against friction from the ribs and the chest wall itself.
Choice B rationale:
The fluid in the pleural cavity does not warm and moisten lung tissue. This is not one of its primary functions.
Choice C rationale:
The fluid in the pleural cavity does not prevent bacteria from entering lung tissue. This is not one of its primary functions.
Choice D rationale:
The fluid in the pleural cavity does not assist in the diffusion of oxygen across the respiratory membrane. This is not one of its primary functions.
Correct Answer is D
Explanation
Choice A rationale:
Sinusoids are a type of capillary found in some organs, such as the liver, bone marrow, and spleen. They are not vessels that carry blood away from the heart.
Choice B rationale:
Veins are blood vessels that carry blood from the body back into the heart.
Choice C rationale:
Capillaries are delicate blood vessels that deliver blood, nutrients and oxygen to cells throughout the body. They do not carry blood away from the heart.
Choice D rationale:
Arteries are blood vessels that carry oxygenated blood away from the heart to the body.
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