What is the purpose of the structure labeled B?
A)Prevent food from entering the trachea
B)Direct food into trachea
C)Produce sound
D)Close off the esophagus during breathing

Question

What is the purpose of the structure labeled B? 
A)Prevent food from entering the trachea 
B)Direct food into trachea 
C)Produce sound 
D)Close off the esophagus during breathing

Quizplus · Accepted Answer

The structure labeled B is the epiglottis, which is responsible for preventing food from entering the trachea during swallowing. Therefore, choice A is the correct answer. Choice B is incorrect as the purpose of the epiglottis is to prevent food from entering the trachea, not direct it into the trachea. Choice C is incorrect as the function of the epiglottis is not related to sound production. Choice D is also incorrect as the epiglottis does not close off the esophagus during breathing; rather, it closes off the trachea during swallowing.

What Is the Purpose of the Structure Labeled B