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:
Arteries carry oxygen-rich blood away from the heart to various organs and tissues.
Choice B rationale:
Arteries do not carry blood away from the body. They transport blood within the body.
Choice C rationale:
While arteries do distribute blood throughout the body, this statement is too general and does not accurately describe the primary function of arteries.
Choice D rationale:
Arteries do not carry blood to the heart; this is the function of veins.
Correct Answer is D
Explanation
Choice A rationale:
Low blood viscosity is not the primary reason blood constantly circulates. It is the heart that creates the pressure increase in arteries that pushes blood through the body.
Choice B rationale:
Vasoconstriction and dilation are not the primary reasons blood constantly circulates. They are mechanisms that help regulate blood flow and pressure, but the constant circulation of blood is due to the beating of the heart.
Choice C rationale:
Pressure gradients play a role in blood circulation, but they are not the primary reason blood constantly circulates. The heart is the organ that creates the pressure increase in arteries that pushes blood through the body.
Choice D rationale:
The beating of the heart is the primary reason that blood constantly circulates throughout the body.
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