Why does the Nose Have Mucus?

When it comes to the human body, you can be pretty sure that everything found in it has a purpose. This is also true of the mucus in the nose. The nose is the passageway through which the air enters our body.

A great deal has to be done to that air, however, before it enters our lungs. It has to be warmed, and it has to be cleaned. Many dust particles that enter with the air are removed by way of the nose. The first cleansing of this air carried out by the bristle hairs which are at the entrance to the nose.

This is where the coarse dust particles are removed. Starting with the nose. This is where the coarse dust particles are removed. Starting with the nose and extending to the air chambers of the lungs, the passageway is lined with cells which have delicate little hairs growing out of them.



These hairs are called “cilia”. The mucus in our nose is clear as glass. The reason it becomes grayish green in color is that tiny dust granules have been brought up from the windpipe by cilia and carried into the nose, where they become mixed with the mucus.

A human being inhales millions of dust granules every minute of the day and night. This is true no matter where you live! The only air that it dust-free is the air over the ocean, once you get at least 600 miles from shore.

Even a breath of a pure country air contains about half a million dust particles! Together with the dust, all types of bacteria enter our nose when we breathe. These bacteria stick to the mucous layer in our nose. And since the mucous layer in our nose. And since the mucus is antiseptic, it kills many of the bacteria. So you see, the mucus in our nose really has the job of helping guard our health!

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