Question

Give reasons:​
(iii) The entrance of the trachea is guarded by epiglottis.​ ​

Answer 1

• Epiglottis is the flap-like structure that guards the entrance of the trachea. ​
• The epiglottis covers the opening of trachea, called the glottis, during swallowing of food, so that the food does not enter the trachea.​