Inion
From Infogalactic: the planetary knowledge core
Inion | |
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File:Skull - midsaggital section P.2005 - Inion.png
Midsaggital section of a human skull. Inion indicated by yellow arrow.
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File:Schaedel im Röntgen seitlich - Inion.png
X-ray of a human skull in lateral view. Inion indicated by yellow arrow.
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Identifiers | |
Dorlands /Elsevier |
i_08/12452346 |
TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
TH | {{#property:P1694}} |
TE | {{#property:P1693}} |
FMA | {{#property:P1402}} |
Anatomical terms of bone
[[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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The inion is the most prominent projection of the occipital bone at the posterioinferior (lower rear) part of the human skull. The ligamentum nuchae and trapezius muscle attach to it.
The term external occipital protuberance (protuberantia occipitalis externa) is sometimes used as a synonym, but more precisely the term "inion" refers to the highest point of the external occipital protuberance.
The inion is used as a landmark in the 10-20 system in EEG recording.
Etymology
The word ἰνίον (iníon) is the Greek word for the occipital bone.
Additional images
References
Lua error in package.lua at line 80: module 'strict' not found. This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
See also
Wikimedia Commons has media related to Inion. |
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- Bones of the head and neck