n.
The point in the skull where the nasal and frontal bones unite.
[New Latin nāsion : NAS(O)- + Greek -ion, diminutive suff.]
nasion
Dictionary:
na·si·on (nā'zē-ŏn') 
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n.
The point in the skull where the nasal and frontal bones unite.
| 5min Related Video: nasion |
| Dental Dictionary: nasion |
(nā′zē on)
n
n
The point at the root of the nose that is intersected by the median sagittal plane. The root of the nose corresponds to the nasofrontal suture, which is not necessarily the lowest point on its dorsum and which can usually be located with the finger.
| Veterinary Dictionary: nasion |
A landmark found at the middle point of the frontonasal suture.
| Wikipedia: Nasion |
| Nasion | |
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| Relations of the brain and middle meningeal artery to the surface of the skull. (Nasion is at #1.) | |
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| Side view of head, showing surface relations of bones. (Nasion labeled at center left.) | |
| Gray's | subject #33 136 |
The nasion (nā′zē än′) is the intersection of the frontal and two nasal bones of the human skull. Its manifestation on the visible surface of the face is a distinctly depressed area directly between the eyes, just superior to the bridge of the nose.
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Nasion". Read more |
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Mentioned in
- Martin’s plane
- Montague’s plane
- nasal root salient (anthropology)
- nose height (anthropology)
- nose length (anthropology)
- Huxley’s plane
- anterior cranial base
- Bolton triangle
- gnathic index (anthropology)
- nasal height (anthropology)
- nasion-menton (anthropology)
- pyramidal fracture
- Boltonnasion plane
- dental index (anthropology)
