Inferior orbital

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
Dorlands /Elsevier	f_08/12365602
TA	A02.1.00.084
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. Inferior division of ophthalmic vein passes through the inferior orbital fissure.

It is formed by the sphenoid bone and maxilla.

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.

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