Inferior orbital fissure

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Not to be confused with the infraorbital groove, infraorbital canal, and infraorbital foramen.

Inferior orbital fissure
Fissuraorbitalisinferior.PNG
The skull from the front. (Label for inferior orbital fissure is at center right.)
Orbita mensch.jpg
Latin Fissura orbitalis inferior
Gray's p.189
TA A02.1.00.084
FMA FMA:54802
Anatomical terminology

The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the zygomatic branch of the maxillary nerve, and the ascending branches from the pterygopalatine ganglion. The infraorbital vessels are found in the inferior orbital fissure, and travel down the infraorbital groove into the infraorbital canal and exit through the infraorbital foramen.

It is formed by the sphenoid bone and maxilla.

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This article incorporates text from a public domain edition of Gray's Anatomy.