Question

which structure in buccal cavity in human prevents swallowed food from entering into trachea

Answer 1

epiglottis is the answer

Answer 2

Explanation:

$\tt\pink{\underline{Buccal\:Cavity}}$

→The oral cavity, bound by the cheeks of the face, the palate, and the flesh of the mandible, opening onto the mouth and the fauces, and containing the teeth, tongue, gums, and other structures.

→The buccal cavity may serve as a space to temporarily store the food inside of a person's (or another animal's) mouth as well as a space where this food will be soaked with saliva coming from the parotid gland. This will help begin the process of digestion.

→Mouth, also called oral cavity or buccal cavity, in human anatomy, orifice through which food and air enter the body.