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Grade 7: The Respiratory System and Lungs Lesson 1: The ...
Grade 7: The Respiratory System and Lungs – Revised 2008 Page 3 • Esophagus – Food moves through the pharynx into the esophagus, which is the passageway for food into the stomach. • Epiglottis – Acting as a trapdoor to the trachea, it keeps food from entering the trachea and blocking the airway.
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