mucus secretion

Mucus secretion is the process by which specialized cells in the body produce mucus, a thick, slippery fluid. This mucus acts as a protective barrier, trapping dust, bacteria, and other particles, helping to keep tissues moist and defend against infection. It is produced mainly in the respiratory and digestive tracts, where it helps lubricate and protect tissues. Mucus secretion is regulated by nerves and hormones, increasing when the body needs more protection or to clear irritants. Overall, it plays a vital role in maintaining the health and function of mucous membrane surfaces.