What are the exchange vessels of the circulatory system, where nutrients, wastes, and hormones are transferred between blood and tissues?.
Venules.
Capillaries.
Arterioles.
Veins.
The Correct Answer is B
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Expiration, also known as exhalation, is the process of air leaving the lungs.
Choice B rationale:
Respiration is a broader term that includes both the inhalation and exhalation processes.
Choice C rationale:
Inhalation is the process of drawing air into the lungs, not exhaling.
Choice D rationale:
Inspiration is another term for inhalation, not exhalation.
Correct Answer is D
Explanation
Choice A rationale:
While the spleen is the body’s largest lymphatic organ, this statement does not encompass all of its functions.
Choice B rationale:
The spleen does contribute to the production of white blood cells, but this is not its only function.
Choice C rationale:
The spleen does play a role in immunity, but it has other functions as well.
Choice D rationale:
This choice accurately describes the multiple functions of the spleen, including immunity, destruction of old red blood cells, blood storage, and hematopoiesis.
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