Inferior orbital fissure

Inferior orbital fissure
The skull from the front. (Label for inferior orbital fissure is at center right.)
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	A02.1.00.084
TA2	489
FMA	54802
Anatomical terminology

The inferior orbital fissure is formed by the sphenoid bone and the maxilla. It is located posteriorly along the boundary of the floor and lateral wall of the orbit. It transmits a number of structures, including:

• the zygomatic branch of the maxillary nerve
• the ascending branches from the pterygopalatine ganglion
• the infraorbital vessels, which travel down the infraorbital groove into the infraorbital canal and exit through the infraorbital foramen
• the inferior division of the 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.

See also

• Foramina of skull
• Superior orbital fissure

References

This article incorporates text in the public domain from page 189 of the 20th edition of Gray's Anatomy (1918)

External links

Wikimedia Commons has media related to Inferior orbital fissure.

• lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (orbitforamina) (#3)
• "Anatomy diagram: 34256.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2012-12-27.
• "Anatomy diagram: 34257.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2012-07-22.