Colorado CNA Practice Exam

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The _______ acts like a lid to shut off the larynx during the swallowing process.

  1. Epiglottis

  2. Pharynx

  3. Thyroid

  4. Trachea

The correct answer is: Epiglottis

The epiglottis serves as a vital structure in the swallowing process by acting like a lid that closes over the larynx. This action prevents food and liquids from entering the airway, directing them instead into the esophagus. The epiglottis is a flap of cartilage located at the root of the tongue and plays a critical role in ensuring that the respiratory passages are protected during swallowing. This function is essential for preventing choking and maintaining a clear airway, which is crucial for safe eating and drinking.

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