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  3. Digestion
  4. The mouth, pharynx, and esophagus

4.2 The mouth, pharynx, and esophagus  (Page 14/58)

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  • Card 14 / 58:
    What prevents swallowed food from entering the airways?

    Usually when food is swallowed, involuntary muscle contractions cause the soft palate to rise and close off the nasopharynx. The larynx also is pulled up, and the epiglottis folds over the glottis. These actions block off the air passages.

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Practice MCQ 4 FlashCards 5 Key Terms 42

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Source:  OpenStax, 101-321-va - vertebrate form and function ii. OpenStax CNX. Jul 22, 2015 Download for free at https://legacy.cnx.org/content/col11850/1.1
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