Mucous

From WikiMD's Food, Medicine & Wellness Encyclopedia

Mucous is a type of biological fluid that is produced by mucous membranes in the body. It serves several important functions, including protecting and lubricating the body's internal surfaces, trapping and removing foreign particles, and aiding in the process of digestion.

Composition[edit | edit source]

Mucous is primarily composed of water, mucins, inorganic salts, cells, and antibodies. Mucins are a type of protein that give mucous its gel-like consistency. The specific composition of mucous can vary depending on the location in the body where it is produced.

Functions[edit | edit source]

Mucous serves several important functions in the body. These include:

  • Protection: Mucous acts as a barrier to protect the body's internal surfaces from pathogens, irritants, and injury. It also helps to keep these surfaces moist.
  • Lubrication: Mucous helps to lubricate the body's internal surfaces, allowing for smooth movement and reducing friction.
  • Trapping and removal of foreign particles: Mucous can trap foreign particles, such as dust and bacteria, and help to remove them from the body.
  • Aiding in digestion: In the digestive system, mucous helps to protect the lining of the stomach and intestines from the acidic environment, and aids in the movement of food through the digestive tract.

Production and Secretion[edit | edit source]

Mucous is produced and secreted by goblet cells, which are found in the mucous membranes that line various parts of the body, including the respiratory tract, digestive tract, and reproductive tract. The production and secretion of mucous can be influenced by various factors, including the presence of irritants, infection, and certain medical conditions.

Medical Significance[edit | edit source]

Changes in the quantity or quality of mucous can be a sign of various medical conditions. For example, increased production of mucous can occur in response to an infection or irritation, and can be a symptom of conditions such as asthma, chronic bronchitis, and cystic fibrosis. Changes in the color or consistency of mucous can also be indicative of certain health issues.

Mucous Resources
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