The nasal cavity is the first part of the respiratory system where air enters to begin the breathing process. The nasal conchae are so called for their shell-shaped structure. The conchae form the lateral walls of the nasal cavity.
Update Date 1/12/2015
Updated by: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.