Mucous occurs in both the respiratory and digestive tracts. What is its main immunological function?
A) physically trapping pathogens
B) sweeping away debris
C) increasing oxygen absorption
D) destruction of pathogens because it is acidic

Question

Quizplus · Accepted Answer

Mucous acts as a physical barrier, trapping pathogens and preventing them from entering the body. It also contains immune cells and antibodies that can directly attack and destroy pathogens.

Mucous Occurs in Both the Respiratory and Digestive Tracts