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Medical Term:

superior orbital fissure


Definition: a cleft between the greater and the lesser wings of the sphenoid establishing a channel of communication between the middle cranial fossa and the orbit, through which pass the oculomotor and trochlear nerves, the ophthalmic division of the trigeminal nerve, the abducens nerve, and the superior or combined ophthalmic veins.

Synonym(s): fissura orbitalis superiorTA, foramen lacerum anterius, sphenoidal fissure

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.