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Obstructive sleep apnea: Blocked upper airway

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Obstructive sleep apnea: Blocked upper airway

Normal airway, showing air flowing through open airway, compared to obstructive sleep apnea, showing air flow blocked by tongue in narrowed airway.

Blocked or narrowed airways in your nose, mouth, or throat can cause sleep apnea. Your airway can become narrowed when your throat muscles and tongue relax during sleep.

Current as of: July 10, 2023

Author: Healthwise Staff
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This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.