why grinding and lubrication are necessary for swallowing?
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Explanation:
There, food is mixed with saliva for lubrication and placed on the back of the ... swallows and peristaltic waves may be necessary to evacuate the liquid.
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The structures involved in deglutition include the tongue, hard and soft palate, pharyngeal muscles, esophagus, and gastroesophageal junction. Coordination of swallowing is controlled by the trigeminal (CN V), facial (CN VII), glossopharyngeal (CN IX), vagus (X), and hypoglossal (CN XII) nerves and their nuclei.
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