Question

Which of these is a consequence of our air (breathing) passage crossing our food passage?

a) Most of digestive tract uses peristalsis for transport
b) Esophogeal phase of swallowing is rather slow
c) Chewing must occur after oral phase of swallowing.
d) Pharyngeal phase of swallowing is very rapid
e) None of the above

Answer 1

The rapid pharyngeal phase of swallowing is a consequence of our air and food passages crossing, ensuring the quick and safe passage of food into the esophagus, avoiding the airway. Correct option is c)

Step-by-step explanation:

The consequence of our air (breathing) passage crossing our food passage is that the pharyngeal phase of swallowing is very rapid to avoid the entry of food into the airway. The food leaves the mouth when the tongue and pharyngeal muscles propel it into the esophagus. This act of swallowing involves both the voluntary action of moving the food to the back of the throat and the involuntary peristalsis which moves the food into the stomach.