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 A
Explanation
The correct answer is Choice A.
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:Thoracotomy (A)is a surgical incision into the chest cavity, typically for major procedures, not specific to draining air.
Choice B rationale: A lung biopsy involves removing lung tissue for examination, not removing air from the pleural space.
Choice C rationale: Lung re-expansion is the goal of the procedure, not the procedure itself.
Choice D rationale:Chest tube insertion(thoracostomy) is the procedure toremove air, blood, or fluidfrom the pleural space and restore negative pressure, allowing the lung to re-expand. This aligns with the description in the question.
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