General Medical Information

Nassal Respiration

Thomas V. Mccaffrey

The nasal airway is the entrance to the respiratory tract. Although respiration can occur through the mouth when respiratory demands are high, respiration occurs preferentially through the nose. The respiratory functions of the nose include preparation of inspired air for the lower respiratory tract by means of warming and humidification, protection of the lower airway by means of removing noxious particulates and soluble gas, and regulation of airway resistance.