Nasal passage Medium

The middle nasal passage is one of three respiratory tracts that serve to deliver air from the external environment to the lungs. It is located at the level of the midline of the body, passes through the nasal septum and connects to the nasopharynx, from where air enters the larynx and trachea. The average nasal passage has a length of about 3 cm and a diameter of about 1 cm