orrváladék

Orrváladék, commonly known as nasal mucus or snot, is a viscous fluid secreted by the mucous membranes lining the nasal passages. Its primary function is to trap inhaled particles such as dust, pollen, and pathogens, preventing them from reaching the lungs. It also helps to humidify and warm the air before it enters the respiratory system. The consistency and color of orrváladék can vary depending on several factors.

Healthy orrváladék is typically clear and watery, allowing for efficient filtration and moistening of inhaled air. However, when the body encounters irritants or infections, the mucous membranes increase mucus production. This can lead to thicker, more opaque orrváladék. For instance, during a cold or sinus infection, the mucus may turn yellow or green due to the presence of white blood cells fighting off the infection. This change in color is generally a sign of the immune system actively working and does not necessarily indicate a bacterial infection.

Other factors that can influence orrváladék include allergies, which can cause an increase in clear, watery mucus, and environmental conditions like dry air, which can lead to thicker, dried mucus. While often considered a nuisance, orrváladék plays a vital role in protecting the respiratory system.