Assertion: mucus's function | /r/CapableOf | make the passage of food
Facets:
Source sentences:
text: The digestive tract is covered by several layers of membranes that secrete mucus; This mucous substance fulfills a very important function, which is to lubricate the intestines, thus making the passage of food easier and protecting the membranes that cover the stomach and the intestines from digestive acids.