ylähengitystiet

Ylähengitystiet refers to the upper respiratory tract, which includes the nasal cavity, pharynx, and larynx. This system plays a crucial role in the initial stages of respiration, filtering, warming, and humidifying the air we breathe. The nasal cavity is the first point of contact for inhaled air, where it is filtered through the nasal hairs and mucus. The pharynx, located behind the nasal cavity, serves as a passageway for both air and food, while the larynx, or voice box, contains the vocal cords and is responsible for producing sound and facilitating speech. The upper respiratory tract is lined with mucous membranes that help to trap and remove foreign particles, dust, and other irritants from the air. Infections and inflammation in the upper respiratory tract can lead to conditions such as sinusitis, pharyngitis, and laryngitis. Proper hygiene, regular exercise, and a balanced diet can help maintain the health of the upper respiratory tract.