Nasal bone
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
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.
Surfaces
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.
Articulations
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.
Additional images
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Orbital bones
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Lateral wall of nasal cavity, showing ethmoid bone in position.
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Articulation of nasal and lacrimal bones with maxilla.
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Right nasal bone. Outer surface.
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Right nasal bone. Inner surface.
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Sphenoid bone visible center right.
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Side view of the skull.
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The skull from the front.
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Horizontal section of nasal and orbital cavities.
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Medial wall of left orbit.
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Sagittal section of skull.
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Roof, floor, and lateral wall of left nasal cavity.
See also
External links
- Template:EMedicineDictionary
- Template:SUNYAnatomyFigs - "Anterior view of skull."
- Template:SUNYAnatomyLabs - "Orbits and Eye: Bones"
- Template:SUNYAnatomyFigs - "The bones of the lateral nasal wall."
- Template:RocheLexicon
Template:Gray's Template:Facial bones
de:Nasenbein it:Osso nasale lv:Deguna kauls lt:Nosikaulis nl:Neusbeen simple:Nasal bone sk:Nosová kosť sl:Nasal bone sr:Носна кост uk:Носова кістка