it somehow prevents foreign materials to get through the body.
the answer is mucus
Mucus serves several important functions in the body. It acts as a protective barrier, trapping pathogens, dust, and other particles to prevent them from entering the respiratory and digestive tracts. Additionally, mucus keeps tissues moist, aiding in the smooth passage of food and the movement of air in the lungs. It also contains antibodies and enzymes that help neutralize harmful microorganisms.
the function of the mucus blanket in the lungs is to filter and moisten the air.
Mucus protects stomach lining from gastric acids.
Since they are guard dogs, and very protective.
Mucus secreted by goblet cells trap the foreign particles. Cilia push the particles out wards. This protects your lungs from damage by the foreign particles.
The function is to get rid of excess mucus.
The stomach has a lining of protective mucus.
The mucus protects the inner lining of the stomach from the action of acids.
Mucus serves several important functions in the body, primarily as a protective barrier. It traps dust, pathogens, and other foreign particles, preventing them from entering the respiratory and digestive systems. Additionally, mucus keeps tissues moist, which is essential for proper function and healing. It also plays a role in the immune response by containing antimicrobial properties and antibodies.
Mucus consists of mucin, water, cells, and inorganic salts and is secreted as a protective lubricant coating by cells and glands of the mucous membranes..
Mucus