What is one of the purposes of the fluid in the pleural cavity?.
Lubricate the pleural surfaces to allow them to glide painlessly during lung expansion and contraction.
Warm and moisten lung tissue.
Prevent bacteria from entering lung tissue.
Assist in the diffusion of oxygen across the respiratory membrane.
The Correct Answer is A
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.
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 A
Explanation
Choice A rationale:
Neutrophils are the most abundant type of white blood cells and are the first to travel to the site of an infection.
Choice B rationale:
Macrophages are white blood cells that reside in tissues and are key players in the immune response, but they do not travel throughout the bloodstream seeking out bacteria.
Choice C rationale:
Phagocytes is a general term for cells that engulf and digest pathogens, which includes neutrophils and macrophages.
Choice D rationale:
Phagosomes are not cells, but are compartments within phagocytes that contain pathogens to be destroyed.
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