Among mammals, it is generally true that ________.
A) all types of foods begin their enzymatic digestion in the mouth
B) after leaving the oral cavity, the bolus enters the larynx
C) the epiglottis prevents swallowed food from entering the trachea
D) the trachea leads to the esophagus and then to the stomach

Question

Quizplus · Accepted Answer

The epiglottis is a flap of tissue that covers the trachea during swallowing to prevent food from entering the respiratory system. This is a crucial function in mammals that prevents choking and respiratory complications. Choice A is incorrect because some types of foods may not need enzymatic digestion in the mouth, such as liquids. Choice B is incorrect because the bolus enters the pharynx, not the larynx, and then is directed to the esophagus. Choice D is incorrect because the trachea and esophagus are two separate tubes that do not intersect.

Among Mammals, It Is Generally True That ________