What to the soft palate and epiglottis do? a bolus is: peristalsis is:

The soft palate keeps food out of the nasal airway during swallowing and the epiglottis prevents food from entering the airway during swallowing. A bolus is a round mass substance of food during swallowing. A peristalsis make wavelike movement that push that push the contents of the carnal forward.

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