Without mucus you would swallow your tongue and it also keep your mouth wet oops sorry that's Saliva
polyp
To keep infection out and fight against infection.
the mucous helps the fish slip through stones easily
Mucous membrane.
Mucous membranes and cilia in the trachea trap and eliminate particulate matter from inhaled air. The membranes also warm and moisten incoming air.
A suction machine such as an aspirator can be used to remove mucous and other unwanted fluids.
Organized.
Organized.
Organized.
A memo really doesn't have much of a structure and the purpose is to inform or remind yourself or others of something.
The trachea
mounika