Question

What prevents the entry of food into trachea while swallowing?? ​

Answer 1

Answer:

epiglottis

In the second stage of swallowing, an important small flap of tissue called the epiglottis, folds over the voice box (larynx) at the entrance to the windpipe (trachea), preventing food from going down the wrong way.

Explanation:

Answer 2

Answer:

${\purple{\underline{\underline{\bold{\huge{Epiglottis}}}}}}$

Explanation:

The epiglottis is a leaf-shaped flap in the throat that prevents food from entering the windpipe and the lungs. It stands open during breathing, allowing air into the larynx.