What is the role of the tongue in chewing and swallowing?
a. The tongue chemically digests the food and moves it into the oropharynx.
b. The tongue secretes saliva and moves food into the oropharynx.
c. The tongue manipulates the chewed food into a small mass called a bolus and moves it into the oropharynx.
d. The tongue manipulates the chewed food into a small mass called a bolus and moves it into the larynx.