Which statement most correctly describes the main function of the lymph nodes?.
The production of lymphatic fluid.
The filtration of blood plasma to remove excess white blood cells.
The production of antibodies.
The removal of pathogens and foreign material from lymphatic fluid.
The Correct Answer is D
Choice A rationale:
Lymph nodes do not produce lymphatic fluid, they filter it.
Choice B rationale:
Lymph nodes do not filter blood plasma to remove excess white blood cells. They filter lymphatic fluid to remove foreign invaders.
Choice C rationale:
While lymph nodes do contain cells that can produce antibodies, this is not their main function.
Choice D rationale:
The main function of lymph nodes is to filter lymphatic fluid and remove pathogens and foreign material.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Sinusoids are a type of capillary found in some organs, not vessels that carry blood to the heart from the lungs.
Choice B rationale:
Arteries typically carry oxygenated blood away from the heart to the body’s tissues, not to the heart from the lungs.
Choice C rationale:
Veins, specifically the pulmonary veins, carry oxygenated blood from the lungs to the heart.
Choice D rationale:
Arterioles are small branches of arteries that lead to capillaries, not vessels that carry blood to the heart from the lungs.
Correct Answer is A
Explanation
Choice B rationale:
The bronchioles are part of the airway that leads to the alveoli, but gas exchange does not occur here.
Choice C rationale:
The bronchus is a larger airway that leads to the bronchioles and then to the alveoli, but gas exchange does not occur here.
Choice D rationale:
While the lungs contain the alveoli where gas exchange occurs, saying that gas exchange occurs in the lungs is not as precise as saying it occurs in the alveoli.
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