Multiple choice

Which part of respiratory system protects the lower airway from expiration?

  1. Uvula

  2. Palatine tonsil

  3. Hyoid bone

  4. Tongue

  5. Epiglottis

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The epiglottis is a leaf shaped structure, immediately posterior to the base of the tongue, above the larynx. When food or liquids are swallowed, the epiglottis closes over the larynx, protecting the lower airways from aspiration.