Where does gas exchange occur?.
The alveoli.
The bronchioles.
The bronchus.
The lungs.
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is Choice C. -
Choice A rationale:
The bicuspid valve, also known as the mitral valve, prevents backflow from the left ventricle to the left atrium. -
Choice B rationale:
The semilunar valves include the aortic and pulmonary valves, but neither prevents backflow into the right atrium. -
Choice C rationale:
The tricuspid valve prevents backflow from the right ventricle to the right atrium. -
Choice D rationale:
The aortic valve prevents backflow from the aorta to the left ventricle.
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.
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