Corpus: Superior orbital fissure
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Synonym: superior orbital fissure, superior orbital fissure
English:
Definition[Bearbeiten]
The superior orbital fissure is a cleft space in the human skull that lies between the greater and lesser wings of the sphenoid bone (Os sphenoidale). It connects the middle cranial fossa (Fossa cranii media) with the eye socket (Orbita).
Anatomy[Bearbeiten]
The superior orbital fissure is about 2 cm long and up to 6 mm wide. The following structures pass through it:
- oculomotor nerve (nerve III)
- Trochlear nerve (nerve IV)
- ophthalmic nerve (nerve V1)
- Nasociliary nerve
- Frontal nerve
- Lacrimal nerve
- Abducens nerve (nerve VI)
- Sympathetic nerve fibres of the cavernous plexus
- Ramus orbitalis arteriae meningeae mediae
- Superior ophthalmic vein