Extraconal orbital compartment
Citation, DOI, disclosures and article data
At the time the article was created Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosuresAt the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.
View Craig Hacking's current disclosures- Extraconal space
- Extraconal orbital space
- Extraconal compartment
The extraconal orbital compartment or extraconal space is the space within the orbit outside the musculofascial cone. The base of which is anterior and is formed by the orbital septum that surrounds the equator of the globe. The external sides are formed by the bones of the orbit and their periosteum. The internal sides are formed by the extraocular muscles and their surrounding fascia which pass posteriorly and converge on the tendinous ring at the orbital apex. Internal to this space is the intraconal space.
Contents
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nerves
trochlear nerve (CN IV)
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branches of the ophthalmic division of the trigeminal nerve
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nasociliary nerve is intraconal, but gives extraconal branches:
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branches of the maxillary division of the trigeminal nerve
infra-orbital nerve (before entering the infra-orbital canal)
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arteries
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extraconal branches of the ophthalmic artery that have an intraconal origin:
infra-orbital artery (before entering the infra-orbital canal)
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-
veins
infra-orbital vein (before entering the infra-orbital canal)
fat
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Related pathology
References
- 1. Moore KL, Agur AMR, Dalley AF. Clinically oriented anatomy. LWW. ISBN:1451119453. Read it at Google Books - Find it at Amazon
- 2. Last's anatomy, regional and applied. Churchill Livingstone. ISBN:044304662X. Read it at Google Books - Find it at Amazon
- 3. Butler P, Mitchell A, Healy JC. Applied Radiological Anatomy. Cambridge University Press. (2012) ISBN:0521766664. Read it at Google Books - Find it at Amazon
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