Landmark · Skeletal system
Chiasmatic sulcus
Sulcus chiasmaticus
- System
- Skeletal system
- Regions
- Head
- Landmark on
- Sphenoid bone
DescriptionUnreviewed
The superior surface of the body of the sphenoid bone is bounded behind by a ridge, which forms the anterior border of a narrow, transverse groove, the chiasmatic groove (optic groove, prechiasmatic sulcus), above and behind which lies the optic chiasma of cranial nerve 2 (the optic nerve).
The groove ends on either side in the optic foramen, which transmits the optic nerve and ophthalmic artery into the orbital cavity.
Source: Wikipedia · Text licence: CC BY-SA 3.0 · This text comes from the source data and has not been reviewed by a person yet.
Names
- Latin
- Sulcus chiasmaticus
- English
- Chiasmatic sulcus
- French
- Sillon chiasmatique
- Spanish
- Surco quiasmático
- Portuguese
- Sulco quiasmático