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{{Short description|Intersection of the frontal bone and two nasal bones of the human skull}} |
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{{Infobox |
{{Infobox anatomy |
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| Name = Nasion |
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| Latin = nasion |
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| Caption = Relations of the brain and [[middle meningeal artery]] to the surface of the skull. (Nasion is at #1.) |
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| Image2 = Nasion.PNG |
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| Caption2 = Side view of head, showing surface relations of bones. (Nasion labeled at center left.) |
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The '''nasion''' ( |
The '''nasion''' ({{IPAc-en|ˈ|n|eɪ|z|i|ɒ|n}}) is the most anterior point of the [[frontonasal suture]] that joins the [[Frontal bone|nasal part of the frontal bone]] and the [[nasal bone]]s. It marks the midpoint at the intersection of the frontonasal suture with the [[internasal suture]] joining the nasal bones.<ref name="Collins">{{cite web |title=Nasion definition and meaning {{!}} Collins English Dictionary |url=https://www.collinsdictionary.com/dictionary/english/nasion |website=www.collinsdictionary.com |accessdate=12 November 2018 |language=en}}</ref> It is visible on the [[face]] as a distinctly depressed area directly between the [[human eye|eye]]s, just superior to the [[nasal bridge|bridge of the nose]]. It is a [[cephalometric analysis#Cephalometric landmarks|cephalometric landmark]] that is just below the [[glabella]].<ref name="Angle">{{cite web |title=The Angle Orthodontist - |url=http://www.angle.org/doi/pdf/10.1043/0003-3219%281960%29030%3C0035%3AIOLICR%3E2.0.CO%3B2?code=angf-site |accessdate=13 October 2018 }}</ref> |
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==References== |
==References== |
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{{ |
{{Reflist}} |
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{{Commons category|Nasion}} |
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==External links== |
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*{{eMedicineDictionary|Nasion}} |
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{{Compound structures of skull}} |
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{{Sutures}} |
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{{Authority control}} |
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[[Category:Facial features]] |
[[Category:Facial features]] |
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{{musculoskeletal-stub}} |
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Latest revision as of 17:22, 11 February 2024
| Nasion | |
|---|---|
 Relations of the brain and middle meningeal artery to the surface of the skull. (Nasion is at #1.) | |
 Side view of head, showing surface relations of bones. (Nasion labeled at center left.) | |
| Details | |
| Identifiers | |
| Latin | nasion |
| TA98 | A02.1.00.015 |
| TA2 | 417 |
| FMA | 264779 |
| Anatomical terminology | |
The nasion (/ˈneɪziɒn/) is the most anterior point of the frontonasal suture that joins the nasal part of the frontal bone and the nasal bones. It marks the midpoint at the intersection of the frontonasal suture with the internasal suture joining the nasal bones.[1] It is visible on the face as a distinctly depressed area directly between the eyes, just superior to the bridge of the nose. It is a cephalometric landmark that is just below the glabella.[2]
References
[edit]- ^ "Nasion definition and meaning | Collins English Dictionary". www.collinsdictionary.com. Retrieved 12 November 2018.
- ^ "The Angle Orthodontist -". Retrieved 13 October 2018.
Wikimedia Commons has media related to Nasion.
