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Nasal bone
From Wikipedia, the free encyclopedia
| Bone: Nasal bone | ||
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| Nasal bone visible at center, in dark green. | ||
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| Cartilages of the nose. Side view. (Nasal bone visible at upper left.) | ||
| Latin | os nasale | |
| Gray's | subject #37 156 | |
| Dorlands/Elsevier | o_07/12598538 | |
The nasal bones are two small oblong bones, varying in size and form in different individuals; they are placed side by side at the middle and upper part of the face, and form, by their junction, "the bridge" of the nose.
Each has two surfaces and four borders.
Contents |
The outer surface is concavoconvex from above downward, convex from side to side; it is covered by the Procerus and Compressor naris, and perforated about its center by a foramen, for the transmission of a small vein.
The inner surface is concave from side to side, and is traversed from above downward, by a groove for the passage of a branch of the nasociliary nerve.
The nasal articulates with four bones: two of the cranium, the frontal and ethmoid, and two of the face, the opposite nasal and the maxilla.
 Orbital bones |
 Lateral wall of nasal cavity, showing ethmoid bone in position. |
 Articulation of nasal and lacrimal bones with maxilla. |
 Right nasal bone. Outer surface. |
 Right nasal bone. Inner surface. |
 Sphenoid bone visible center right. |
 Side view of the skull. |
 The skull from the front. |
 Horizontal section of nasal and orbital cavities. |
 Medial wall of left orbit. |
 Sagittal section of skull. |
 Roof, floor, and lateral wall of left nasal cavity. |
- nasal+bone at eMedicine Dictionary
- SUNY Figs 22:02-07 - "Anterior view of skull."
- SUNY Labs 29:st-0206 - "Orbits and Eye: Bones"
- SUNY Figs 33:01-03 - "The bones of the lateral nasal wall."
- Roche Lexicon - illustrated navigator, at Elsevier 34256.000-1
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.