Which of the following structures prevents food from being aspirated into the lungs?.
Larynx.
Trachea.
Epiglottis.
Pharynx.
The Correct Answer is C
The correct answer is Choice C. -
Choice A rationale:
The larynx is part of the airway but does not prevent aspiration. -
Choice B rationale:
The trachea is the airway leading to the lungs but does not prevent aspiration. -
Choice C rationale:
The epiglottis is a flap of tissue that covers the airway during swallowing, preventing food from entering the lungs. -
Choice D rationale:
The pharynx is part of the throat but does not prevent aspiration.
So, the correct answer is C, after analyzing all choices.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Low blood viscosity is not the primary reason blood constantly circulates. It is the heart that creates the pressure increase in arteries that pushes blood through the body.
Choice B rationale:
Vasoconstriction and dilation are not the primary reasons blood constantly circulates. They are mechanisms that help regulate blood flow and pressure, but the constant circulation of blood is due to the beating of the heart.
Choice C rationale:
Pressure gradients play a role in blood circulation, but they are not the primary reason blood constantly circulates. The heart is the organ that creates the pressure increase in arteries that pushes blood through the body.
Choice D rationale:
The beating of the heart is the primary reason that blood constantly circulates throughout the body.
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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