Superior orbital fissure
The superior orbital fissure is a foramen in the skull which lies in between the lesser and greater wing of the sphenoid bone. Several important features pass through this, including:
- Oculomotor nerve- superior and inferior divisions (CN III)
- Trochlear nerve (CN IV)
- Ophthalmic nerve- lacrimal, frontal and nasociliary branches (CN V1)
- Abducens nerve (CN V1)
- Ophthalmic vein- superior and inferior divisions
- Sympathetic fibers from cavernous plexus
Did you know..
The eye can process 36,000 pieces of information every hour.