What occurs when the cilia that line your trachea and bronchi?

The trachea and bronchi are lined with ciliated cells, which are cells with hair-like projections called cilia. These cilia beat in a wave-like motion, which helps to move mucus and foreign particles up and out of the respiratory tract. This process is called mucociliary clearance.

When the cilia that line the trachea and bronchi are damaged or destroyed, mucociliary clearance is impaired. This can lead to a build-up of mucus and foreign particles in the respiratory tract, which can increase the risk of infection and other respiratory problems.

Some conditions that can damage or destroy the cilia that line the trachea and bronchi include:

* Chronic bronchitis

* Emphysema

* Cystic fibrosis

* Smoking

* Air pollution

* Radiation therapy

* Chemotherapy

If you have any of these conditions, it is important to take steps to protect your respiratory health. This may include avoiding exposure to irritants, such as smoke and air pollution, and getting regular exercise.