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 C
Explanation
Answer and explanation
The correct answer is Choice C.
Choice A rationale:
Baroreceptors are sensors located in the blood vessels that detect changes in blood pressure. However, they do not coordinate blood pressure control. They send signals to the brain about blood pressure changes, and the brain coordinates the response.
Choice B rationale:
The brainstem is a part of the brain that connects the cerebrum with the spinal cord. It contains structures that are involved in many vital body functions, including breathing and heart rate regulation. However, it is not the primary structure that coordinates blood pressure control.
Choice C rationale:
The medulla oblongata, a part of the brainstem, contains the cardiovascular centers that coordinate the regulation of heart rate and blood pressure.
Choice D rationale:
The thalamus is a part of the brain that is primarily involved in processing sensory information and regulating consciousness, sleep, and alertness. It does not coordinate blood pressure control.
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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