Medical Definition of Ala orbitalis

1. One of a bilateral pair of triangular, pointed plates extending laterally from the anterolateral body of the sphenoid bone. Forming the posteriormost portion of the floor of the anterior cranial fossa, their sharp posterior edge forms the sphenoidal ridge separating anterior and middle cranial fossae. The medial end of the lesser wing attaches to the body by means of two pedicles, thus forming the optic canal. The wing itself forms the superior margin of the supraorbital fissure. Synonym: ala minor ossis sphenoidalis, ala orbitalis, Ingrassia's apophysis, Ingrassia's wing. (05 Mar 2000)



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Lexicographical Neighbors of Ala Orbitalis

al Itihaad al Islamiya
al dente
al desko
al fresco
al niente
ala
ala auris
ala central lobule
ala cerebelli
ala cinerea
ala cristae galli
ala lobuli centralis
ala major ossis sphenoidalis
ala minor ossis sphenoidalis
ala nasi
ala orbitalis (current term)
ala ossis ilii
ala sacralis
ala temporalis
ala vespertilionis
ala vomeris
alaap
alaaps
alabama period
alabamine
alabamium
alabandite
alabandites
alabaster
alabasters

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