Mucoid Substance

Mucoids are proteins that are formed in large quantities during inflammation of organs (lungs, trachea, bronchi), when alveoli and tissues rupture. These substances are produced by the epithelium of the lungs and then released into the lumen of the bronchial tree. They look like large dense, branched threads of bright red color. Mucoids are also capable of sticking together and forming aggregates, thereby forming mucus. Mucus forms in the lumen of the airways, which envelops the bronchioles and bronchi and protects them from further damage. And if bronchitis already exists, then mucus takes a greater part in the discharge of sputum. But in addition to their protective function, these substances reduce irritation of bronchial receptors, as a result of which the sensitivity between the receptors of the mucous membrane decreases. In addition, mucoids exhibit little bactericidal activity. A mucoid consists of one polypeptide chain. This substance is a glycoprotein, its composition is represented by the following carbohydrates: mannuronic acid and fucosate.