Inferior orbital fissure

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