All of the Following Are Functions of Mucus EXCEPT ___

Multiple Choice

All of the following are functions of mucus EXCEPT ___.

A) protects the lining of the stomach from harmful chemicals
B) traps dust particles in the respiratory system
C) lubricates food as it moves through the gastrointestinal tract
D) traps foreign particles like bacteria and viruses in the respiratory
E) lubricates the ends of bones as they move in joints