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Home › Body Atlas › Bones › Inferior Nasal Concha
Bone Head & Skull

Inferior Nasal Concha

concha nasalis inferior

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.

Anatomical Data

Structure & Landmarks

Articulations
Landmarks
  • Body
  • Free inferior border
  • Lacrimal process
  • Ethmoid process
  • Maxillary process
OssificationOssification from a single centre at approximately 5 months of fetal life as a distinct bone rather than part of the ethmoid.
Clinical Relevance

Clinical Notes

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.

Pathology

Common Injuries & Conditions

Inferior Turbinate Hypertrophy

Enlargement of the mucosa covering the inferior concha is a common cause of chronic nasal obstruction and may be treated by turbinate reduction surgery.

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