2. The configuration of the conchae and meastuses forms irregular twists and tur

Question

2. The configuration of the conchae and meastuses forms irregular twists and turns along the wall of the nasal cavity. What do you think is the function of this arrangement. Anatomy of the Respiratory System REVIEW SHEET 25 Name Lab Section Date 1. Ideally, the nasal septum will divide the nasal cavity equally, but it is common for this partition to be slightly off center. A deviated septum, however, is a condition in which the nasal septum is shifted significantly away from the midline. Explain how this abnormality may cause difficulty in breathing. 2. The configuration of the conchae and meatuses forms irregular twists and turns along the wall of the nasal cavity. What do you think is the functional advantage of this arrangement?

Explanation / Answer

1. Deviated nasal septum (DNS) obliterates one of the two nasal passages. This mechanically obstructs air flow as well as clearance of nasal secretions, resulting directly or indirectly (congestion, frequent sinus infections, etc.) in difficult breathing.

2. The turns and twists increase the area of the surface with which air comes in contact before entering the lungs, allowing its equilibration with respect to humidity and temperature.

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