the trachea is guarded by a cartilagenous flap which closes windpipe at the time of swallowing food. it is called ______
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Answer:
epiglottis
Explanation:
The epiglottis closes the trachea at the time of swallowing of food. The walls of the trachea have C- shaped cartilaginous rings that prevent the trachea from collapsing.
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2
Answer:
epiglottis
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