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fissure
(redirected from Inferior orbital fissure)

    Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
fissure
1. Anatomy a narrow split or groove that divides an organ such as the brain, lung, or liver into lobes
2. a small unnatural crack in the skin or mucous membrane, as between the toes or at the anus
3. a minute crack in the surface of a tooth, caused by imperfect joining of enamel during development
fissure [′fish·ər]
(geology)
A high, narrow cave passageway.
An extensive crack in a rock.
(metallurgy)
A small cracklike discontinuity with a slight opening or displacement of the fracture surfaces.
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Discussion The maxillary division of the Vth cranial nerve exits the superior maxillary foramen and enters the orbit via the inferior orbital fissure.
Surgical implications of an unusual anomaly of the infraorbital nerve by Kennedy, David W. / Ear, Nose and Throat Journal
6) The inferior ophthalmic vein passes through the inferior orbital fissure under the optic nerve and communicates with the pterygoid plexus; there it either joins the superior ophthalmic vein or empties into the cavernous sinus.
Intracranial complications of sinusitis: a 15-year review of 39 ... by Anand, Vinod K. / Ear, Nose and Throat Journal
Intraorbital tumor involvement can occur as a result of extension to the inferior orbital fissure.
Perineural tumor spread from a palatal carcinoma. (Imaging Clinic) by Palacios, Enrique / Ear, Nose and Throat Journal
 
 
 
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