The Trachea is Lined with the Respiratory Membrane to Trap

Question

The trachea is lined with the respiratory membrane to trap dust and pollen in the air.

Accepted Answer

The trachea is lined with a mucous membrane and tiny hair-like projections called cilia which help to trap and expel particles such as dust and pollen in the air. The respiratory membrane refers to the site of gas exchange in the lungs where oxygen enters the bloodstream and carbon dioxide is removed.