næsekanalerne
Næsekanalerne, also known as nasal passages, are the two passageways that make up the internal nose. They begin at the nostrils and extend backward to the nasopharynx, the upper part of the throat. These channels are crucial for respiration and play a significant role in filtering, warming, and humidifying inhaled air before it reaches the lungs. The walls of the næsekanalerne are lined with a mucous membrane that contains tiny hair-like structures called cilia.
The mucous membrane secretes mucus, which traps dust, pollen, bacteria, and other airborne particles. The cilia
Within the næsekanalerne are three bony projections called turbinates, or conchae. These structures increase the surface