Give the importance of "C" shaped cartilaginous rings found in
trachea
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The C-shaped cartilaginous rings allow the trachea to collapse slightly at its opening, so food can pass down the esophagus after swallowing. The epiglottis closes the opening to the larynx during swallowing to prevent swallowed matter from entering the trachea.
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THE C SHAPED CARTILAGIOUS RINGS ALLOW THE TRACHEA TO COLLAPSE SLIGHTLY AT ITS OPENINGS , SO FOOD CAN PASS DOWN THE ESOPAGUS AFTER SWALLOWING . THE EPIGLOTTIS CLOSES THE OPENING TO LARYNX DURING SWALLOWING TO PREVENT SWALLOWED MATTER FROM ENTERING THE TRACHEA.
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