What is the role of mucus in digestive system
In the human?digestive system,?mucus?is used as a lubricant for materials that must pass over membranes, e.g., food passing down the esophagus. ... A layer of?mucusalong the inner walls of the stomach is vital to protect the cell linings of that organ from the highly acidic environment within it.
Mucus - Wikipedia
Mucus - Wikipedia