ANATOMY

Detailed explanation-1: -Mucous membranes secrete mucus, a slimy substance that traps pathogens.

Detailed explanation-2: -It provides a barrier against foreign particles, captures them in its sticky mucus and clears them out. Immune cells and natural antibiotics in the mucus defend against pathogens, while the lubrication defends against injury.

Detailed explanation-3: -Mucous membranes provide a mechanical barrier to pathogens and other particles at body openings. These membranes also line the respiratory, gastrointestinal, urinary, and reproductive tracts. Mucous membranes secrete mucus, which is a slimy and somewhat sticky substance that traps pathogens.

Detailed explanation-4: -Mucous membranes secrete mucus, a slimy substance that coats the membranes and traps pathogens. Mucous membranes also have cilia, which are tiny projections that have wavelike motions. The movements of cilia sweep mucus and trapped pathogens toward body openings to be removed from the body.