German Contact How to study Login Register

Register now and grab your free ultimate anatomy study guide!

Sidebar ebook trimmed

The Nasal Bone


The nasal bones are two small bones of the midface which build the bridge of the nose.

Recommended video: Nasal bone
Anatomy, function and diagram of nasal bone.


The nasal bone is a bilateral symmetrical paired bone of the face. Their superior borders and main bodies form the bridge of the nose while the inferior borders connect with the nasal cartilage to form the superior margin of the nasal aperture.


It is bordered medially by its pair (→the internasal suture), the nasal part of the frontal bone superiorly (→frontonasal suture) and laterally by the frontal process of the maxilla (→ nasomaxillary suture). The perpendicular plate of the ethmoid bone (→ nasoethmoidal suture) and the septal cartilage of the nose lie behind the nasal bones. Inferiorly it is attached to the lateral cartilage of the nose.

Osseous Development

The nasal bones are ossified intramembranously via the cartilaginous nasal capsule. Clinically the hypoplasia or absence of nasal bones is a common feature in Down syndrome (trisomy 21) and other chromosomal abnormalities. That is why the detection of the nasal tip in the ultrasound has become part of prenatal screening tests in many countries.


The nose is an extremely frequent place for fractures, e.g. due to sports injuries, road traffic accidents and fist fights. One typical example is the Le Fort II fracture: It has a pyramidal-shaped outline and extends from the nasal bridge superiorly to the pterygoid plates inferiorly. Laterally it passes through the inferior orbital floor and the anterior wall of the maxillary sinus. Within the orbit the fracture line passes next to the infraorbital foramen where the infraorbital nerve and its corresponding vessels pass through. As it requires a great force to cause a Le Fort fracture the affected patients ought to be checked on other injuries as well, e.g. up to 50% have an open fracture with leaking cerebrospinal fluid.

For more information about the bones of the viscerocranium check out kenHub’s library!

Get me the rest of this article for free
Create your account and you'll be able to see the rest of this article, plus videos and a quiz to help you memorize the information, all for free. You'll also get access to articles, videos, and quizzes about dozens of other anatomy systems.
Create your free account ➞
Show references


  • Neil S. Norton, Frank H. Netter: Netter’s Head and Neck Anatomy for Dentistry, 2nd edition, Elsevier Saunders, p. 36, 55, 62
  • Neil F. Sharpe, Ronald F. Carter: Genetic Testing - Care, Consent and Liability, John Wiley & Sons (2006), p.188
  • Brian Dolan, Lynda Holt: Accident & Emergency - 3rd edition, Elsevier (2013), p.157


  • Dr. Alexandra Sieroslawska


  • Nasal bone - anterior view - Yousun Koh 
  • Nasal bone - sagittal section - Yousun Koh 
© Unless stated otherwise, all content, including illustrations are exclusive property of Kenhub GmbH, and are protected by German and international copyright laws. All rights reserved.

Continue your learning

Article (You are here)
Other articles
Well done!

Register now and grab your free ultimate anatomy study guide!

Sidebar ebook trimmed
Create your free account.
Start learning anatomy in less than 60 seconds.