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The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the maxillary nerve and its zygomatic branch, the infraorbital vessels, and the ascending branches from the sphenopalatine ganglion.
It is formed by the sphenoid bone and maxilla.
Corrected info: between greater wing of sphenoid and maxilla; transmits infraorbital nerve and artery, zygomatic nerve, and venous communication between the pterygoid plexus and inferior ophthalmic vein
Images
 Left infratemporal fossa. |
 Horizontal section of nasal and orbital cavities. |
 Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure. |
| Inferior orbital fissure | |
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| The skull from the front. (Label for inferior orbital fissure is at center right.) | |
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| 1 Foramen ethmoidale, 2 Canalis opticus, 3 Fissura orbitalis superior, 4 Fossa sacci lacrimalis, 5 Sulcus infraorbitalis, 6 Fissura orbitalis inferior, 7 Foramen infraorbitale | |
| Latin | f. orbitalis inferior |
| Gray's | subject #46 189 |
| Dorlands/Elsevier | f_08/12365602 |
See also
External links
- Norman/Georgetown lesson3 (orbitforamina) (#3)
- Roche Lexicon - illustrated navigator, at Elsevier 34256.000-1
- Roche Lexicon - illustrated navigator, at Elsevier 34257.000-1
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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- This page was last modified on 24 April 2008, at 00:20.
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