The inferior nasal conchae are scroll-shaped bones projecting from the lateral nasal walls that increase the surface area of the nasal cavity, warming and humidifying inhaled air before it reaches the lungs.
The inferior nasal conchae are the largest of the three nasal turbinates and contain highly vascular erectile tissue that swells cyclically to alternate nasal airflow — the nasal cycle. Inferior turbinate hypertrophy from chronic allergic rhinitis is managed with topical steroids, turbinate reduction by radiofrequency or submucosal resection, or partial turbinectomy in severe cases.
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