Inferior orbital fissure
| Inferior orbital fissure | |
|---|---|
| File:Fissuraorbitalisinferior.PNG The skull from the front. (Label for inferior orbital fissure is at center right.) | |
| File:Orbita mensch.jpg 1 Foramen ethmoidale, 2 Canalis opticus, 3 Fissura orbitalis superior, 4 Fossa sacci lacrimalis, 5 Sulcus infraorbitalis, 6 Fissura orbitalis inferior, 7 Foramen infraorbitale | |
| Details | |
| Identifiers | |
| Latin | fissura orbitalis inferior |
| TA98 | Lua error in Module:Wikidata at line 746: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terminology [[[d:Lua error in Module:Wikidata at line 865: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]] | |
The inferior orbital fissure is a gap between the greater wing of sphenoid bone, and the maxilla. It connects the orbit (anteriorly) with the infratemporal fossa and pterygopalatine fossa (posteriorly).[1]: 397
Anatomy
[edit | edit source]The medial end of the inferior orbital fissure diverges laterally from the medial end of the superior orbital fissure. It is situated between the lateral wall of the orbit and the floor of the orbit.[1]: 397
Contents
[edit | edit source]The fissure gives passage to multiple structures, including:
- Infraorbital nerve,[1]: 402 artery[1]: 364 and vein[citation needed]
- Inferior ophthalmic vein[1]: 364, 403
- Zygomatic nerve[1]: 496
- Orbital branches of the pharyngeal nerve[1]: 370
- Maxillary nerve
Additional images
[edit | edit source]-
Left infratemporal fossa.
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Horizontal section of nasal and orbital cavities.
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Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure.
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Inferior orbital fissure.
See also
[edit | edit source]References
[edit | edit source]Public domain This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
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- lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (orbitforamina) (#3)
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