Question

how does mucus helps in passages of food ?​

Answer 1

Answer:

Mucus. Mucus, viscous fluid that moistens, lubricates, and protects many of the passages of the digestive and respiratory tracts in the body. ... Large numbers of mucous cells occur in the mouth, where mucus is used both to moisten food and to keep the oral membranes moist while they are in direct contact with the air.

Answer 2

Mucus, viscous fluid that moisten, lubricates and protects many of the passages of the digestive and respiratory tracts in the body.... Large numbers of mucous cells occur in the mouth, where mucus is used both to moisten food and to keep the oral membranes moist while they are in direct contact with the air.