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What covers the opening of the trachea?

AEpidermis
BEpithelium
CEpiglottis
DEpicardium
Answer & Solution
Correct answer: C. Epiglottis
1. Swallowing must not send food into the airway. 2. A flap of elastic cartilage closes it off. 3. The epiglottis is a flexible piece of elastic cartilage that covers the opening of the trachea. 4. So the answer is the epiglottis. _Source: OpenStax 'Anatomy and Physiology 2e', Ch 22 'The Respiratory System'_
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