Mucus is a secret of goblet cells of the epithelium. The name of these cells are received by a special form: they have a narrow base that contains the basic organelles and broad tip, in which mucus accumulates.Goblet cells contained in the epithelium of the conjunctiva. The mucusthat they produce, together with the lacrimal fluid moistens the corneal surface and reduce the friction of the eyeball movements. When inflammation of the conjunctiva the amount of secretions of goblet cells increases, which is outwardly manifested by the accumulation of mucus at the inner corners of the eyes. Goblet cells in the respiratory tract are all over the Airways, from the nasal cavity and ending with the terminal bronchioles of the lungs. Excreted mucus moistens the inhaled air, adsorbs dust particles and protects against the penetration of pathogens of respiratory infections. If the mucus is produced in normal amounts, it looks invisible. Colds, inflammatory and allergic processes, its amount sharply increases, which is manifested by runny nose and cough with phlegm. Slime cells are found in the esophagus, the stomach undergastricgland and th throughout the intestines. Their secret protects shell from damage by the digestive juices and rude lumps of food, promotes easy passage of the bolus in the direction of the waves of peristalsis. The amount of mucus in the gastrointestinal tract is increased in gastritis, duodenitis, colitis, pancreatitis, proctitis, and other inflammatory diseases. Objectively, this condition is manifested by appearance of significant amounts of mucus in gastric or duodenal intubation, endoscopy, examination of stool. Normal small amount of mucus on the surface of the urinary tract. It is necessary to protect against the introduction of bacteria. Mucus is so small that it can not be detected in tests, but with the development of urethritis and cystitis, its volume increases significantly.The secret of goblet cells located in the mucous membranes of the reproductive system of men and women. He also performs a protective function, and its amount increases with the development of local inflammation. For mucus in the cervical canal of the cervix, in addition to the above properties share one characteristic: its amount increases during ovulation. This is a normal reaction of the body, as cervical mucus is the original guide sperm into the uterus for further fertilization.