What is in the inferior orbital fissure?
It transmits the: infra-orbital nerve (from the maxillary division of trigeminal nerve) zygomatic nerve (from the maxillary division of trigeminal nerve) a branch of the inferior ophthalmic vein and several emissary veins connecting it to the pterygoid venous plexus.
What is superior orbital fissure?
The superior orbital fissure is a bony cleft found at the orbital apex between the roof and lateral wall. It is a communication between the orbital cavity and middle cranial fossa and is bounded by the greater wing, lesser wing and body of sphenoid.
Which artery passes through inferior fissure?
The infraorbital artery branches from the internal maxillary artery in the pterygopalatine fossa and enters the orbit through the inferior orbital fissure to travel across the floor of the orbit in the infraorbital sulcus.
What comes out of the superior orbital fissure?
Structures passing through this fissure : superior and inferior divisions of oculomotor nerve (III), trochlear nerve (IV), lacrimal, frontal and nasociliary branches of ophthalmic (V1), abducens nerve (VI), superior and inferior divisions of ophthalmic vein, inferior division also passes through the inferior orbital …
Where does the superior orbital fissure lead to?
The superior orbital fissure is a foramen or cleft in the skull. It lies between the lesser and greater wings of the sphenoid bone….
|Superior orbital fissure|
|Part of||sphenoid bone|
|Latin||fissura orbitalis superior|
Where does inferior orbital fissure open?
The inferior orbital fissure (IOF) lies in the floor of the orbit inferior to the superior orbital fissure and it is bounded superiorly by the greater wing of sphenoid, inferiorly by maxilla and orbital process of palatine bone and laterally by the zygomatic bone. It opens into posterolateral aspect of orbital floor.