The chiasmatic sulcus is a transversely oriented bony groove on the intracranial surface of the Os sphenoidaleChiasma opticum
Anatomy
The chiasmatic sulcus is located at the base of the lesser wings of the sphenoid bone, posterior to the ethmoidal spine and immediately rostral to the Tuberculum sellae. It terminates on both sides in the Canalis opticusNervus opticusArteria ophthalmicaOrbita
