Question

fill in the blank question
the superior esophageal sphincter is closed during inhalation of air, so that air doesnt enter the and enters the and trachea instead.
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Explanation:

The superior esophageal sphincter prevents air from entering the esophagus (which is part of the digestive system) during inhalation. Instead, air should enter the larynx (voice box) as it is the correct pathway to the trachea (windpipe) for the respiratory system.

Answer:

esophagus; larynx