orbital fissure

orbital fissure
orbital fissure n either of two openings transmitting nerves and blood vessels to or from the orbit:
a) one situated superiorly between the greater wing and the lesser wing of the sphenoid bone called also superior orbital fissure, supraorbital fissure
b) one situated inferiorly between the greater wing of the sphenoid bone and the maxilla called also inferior orbital fissure, infraorbital fissure, sphenomaxillary fissure

Medical dictionary. 2011.

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Look at other dictionaries:

  • orbital fissure — See: orbital hiatus [Martin, 2005] …   Crustacea glossary

  • orbital fissure — noun : either of two openings transmitting nerves and blood vessels to or from the orbit with a superior lying between the greater and the lesser wing of the sphenoid bone and an inferior between the greater wing of the sphenoid and the maxilla …   Useful english dictionary

  • Superior orbital fissure — Infobox Bone Name = Superior orbital fissure Latin = fissura orbitalis superior GraySubject = 201 GrayPage = 900 Caption = 1 Foramen ethmoidale, 2 Canalis opticus, 3 Fissura orbitalis superior, 4 Fossa sacci lacrimalis, 5 Sulcus infraorbitalis, 6 …   Wikipedia

  • Inferior orbital fissure — The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the maxillary nerve and its zygomatic branch, the infraorbital vessels, and the ascending branches from the sphenopalatine… …   Wikipedia

  • inferior orbital fissure — n ORBITAL FISSURE (b) …   Medical dictionary

  • superior orbital fissure — n ORBITAL FISSURE (a) …   Medical dictionary

  • superior orbital fissure syndrome — deep orbital and unilateral frontal headache with progressive sixth, third, and fourth cranial nerve palsies, with oculomotor paralysis, diminution of the field of vision, and other ocular changes; it occurs either as a result of a meningioma of… …   Medical dictionary

  • orbital fissure inferior — fissura orbitalis inferior …   Medical dictionary

  • orbital fissure superior — fissura orbitalis superior …   Medical dictionary

  • Orbital part of frontal bone — Frontal bone. Outer surface. (The Pars orbitalis is the bottom third.) F …   Wikipedia

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