describe the location and importance of cilia and mucus in the respiratory system.

Answer:

Cilia are located on the surface of the cells that line the respiratory tract, from the nose to the bronchioles. Mucus is secreted by goblet cells in the same lining of the respiratory tract. Their importance lies in the fact that mucus traps dust, bacteria, and other foreign particles that enter the respiratory system. Cilia then move in coordinated, wave - like motions to propel the mucus and the trapped particles upwards towards the throat, where they can be either swallowed or coughed out. This helps to keep the airways clean and free from contaminants, protecting the delicate tissues of the lungs from damage and infection.

Brief Explanations:

Explained location in respiratory tract and protective function of trapping and removing foreign particles.