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The circulatory and respiratory systems

Problem

When you swallow, a characteristic "gulp" sound can be heard. This "gulp" is caused by the epiglottis (a flap of tissue) covering the trachea and guiding food/water down the esophagus during swallowing.
Which of the following best describes how the epiglottis is connected to the respiratory system's function?
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Choose 1 answer:
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