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AnatomyHead and neckNasal region
Inferior nasal concha

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Inferior nasal concha

Author: Alexandra Sieroslawska MD • Reviewer: Dimitrios Mytilinaios MD, PhD • Last reviewed: March 19, 2020

The inferior nasal concha is the most caudally based of the three nasal conchae. While the superior and middle nasal conchae form part of the perpendicular plate of the ethmoid bone, the inferior nasal concha is a bony structure by itself. It sits on the vertical bony plate known as the nasal septum, separating the nasal cavity into two bilateral and symmetrical anatomical caves.

Contents
  1. Anatomy
  2. Osseous development
  3. Summary
  4. Related diagrams and images
+ Show all

Anatomy

The pair of curved inferior nasal conchae overhang the wall on either side as a lateral protuberance. They mature via endochondral ossification and nest within a curvature of the nasal septum, so that its protuberance doesn’t span the entire width of the nasal cavity.

Inferior nasal concha (medial view)

Articulating bony structures include the frontal process of the maxilla anteriorly, the uncinate process of the ethmoid bone and the lacrimal bone anteromedially, and the perpendicular plate of the palatine bone posteromedially.

Osseous development

Laterally, the inferior nasal concha is concave and has no articulations, but it is not the same as the nasal bones or the vomer. Compared to them, the bone is rounded, with an irregular surface of small impressions and tiny holes. The inferior nasal concha forms the inferior nasal meatus. The medial surface, closest to the nasal septum, is convex and hold numerous grooves that house passing vessels.

Summary

The inferior nasal concha is the most caudally based of the three nasal conchae and sits on the vertical bony plate known as the nasal septum. The pair of inferior nasal conchae mature via endochondral ossification. Its articulating bony structures include:

  • frontal process of the maxilla anteriorly
  • the uncinate process of the ethmoid bone and the lacrimal bone anteromedially
  • perpendicular plate of the palatine bone posteromedially

The inferior nasal concha forms the inferior nasal meatus.

Inferior nasal concha: want to learn more about it?

Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.

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“I would honestly say that Kenhub cut my study time in half.” – Read more. Kim Bengochea Kim Bengochea, Regis University, Denver

Show references

Reference:

  • Neil S. Norton, Ph.D. and Frank H. Netter, MD, Netter’s Head and Neck Anatomy for Dentistry, 2nd Edition, Elsevier Saunders, Chapter 2 Osteology, Page 41.

Illustrators:

  • Inferior nasal concha (medial view) - Yousun Koh
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Related diagrams and images

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