The circulatory and respiratory systems

When you swallow, a characteristic "gulp" sound can be heard. This "gulp" is caused by the epiglottis (a flap of tissue) covering the trachea and guiding food/water down the esophagus during swallowing.

Which of the following best describes how the epiglottis is connected to the respiratory system's function?

(Choice A)
If food/water goes down the trachea, a blockage to the pathway of air in the respiratory system may occur.
(Choice B)
Choking on food/water occurs when the epiglottis blocks the pathway of air from the bronchi to the bronchioles.
(Choice C)
Choking on food/water occurs when the epiglottis blocks the pathway of air from the nose to the pharynx.
(Choice D)
If food/water goes down the esophagus, a blockage to the pathway of air in the respiratory system may occur.

High school biology

Course: High school biology > Unit 8

Problem