Which structure prevents the entrance of food into the trachea?

Question

Which structure prevents the entrance of food into the trachea? ​

Quizplus · Accepted Answer

The epiglottis is a flap of tissue that is located at the base of the tongue and prevents food from entering the trachea when you swallow. It covers the opening of the trachea during swallowing to make sure that food only goes down the esophagus and into the stomach. The tongue helps manipulate food and push it toward the back of the mouth, but it does not prevent it from entering the trachea. The cardiac sphincter is a muscular ring that controls the flow of food into the stomach, and the larynx contains the vocal cords and is involved in breathing and sound production.

Which Structure Prevents the Entrance of Food into the Trachea