In the process of swallowing,food cannot normally enter the trachea because the ________.

Question

Quizplus · Accepted Answer

The epiglottis is a flap of tissue that covers the opening of the larynx during swallowing, preventing food from entering the trachea and lungs. This allows the food to pass down the esophagus and into the stomach. Choice A is not entirely correct, as the tongue plays a role in moving food around the mouth, but it is not the main factor in preventing food from entering the trachea. Choice B is incorrect, as the esophageal sphincter controls the passage of food from the esophagus into the stomach, but has no effect on the trachea. Choice D is incorrect, as the trachea and esophagus are two separate tubes that run parallel to each other, with the trachea lying in front of the esophagus.

In the Process of Swallowing,food Cannot Normally Enter the Trachea