Question

Structure which prevent the entry of food into respiratory tract is

Answer 1

It's epiglottis which prevents entry of bolus or food that is partially digested from salivary gland .

Answer 2

hii mate....

epiglottis is your answer.

epiglottis is a cartilaginous flap which guards the grottos which is the opening of respiratory system in pharynx. epiglottis prevents the entry of food into the respiratory system. it closes during swallowing action.

hope it helped u ..!