what is the use of lips
Answers
Answer:
Lips serve to close the mouth airtight shut, to hold food and drink inside. Lips help to hold food between upper and lower teeth during chewing. Lips push food into the oral cavity proper during the voluntary phase of swallowing where it is ingested and prepared for digestion in the stomach and small intestine.
Answer:
Lips serve to close the mouth airtight shut, to hold food and drink inside. Lips help to hold food between upper and lower teeth during chewing. Lips push food into the oral cavity proper during the voluntary phase of swallowing where it is ingested and prepared for digestion in the stomach and small intestine.
Explanation:
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