Question
Give reasons : Glottis is guarded by a flap called epiglottis.
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Answer
- The oesophagus and trachea lie side by side.
- There is possibility that food particles may enter respiratory passage at the time of gulping.
- However, the epiglottis prevents the entry of food into the respiratory passage by closing it temporarily.
- Thus, for preventing the entry of food particles into respiratory passage, the glottis is guarded by a flap called epiglottis.
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