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The greater wings of the sphenoid are two strong processes of bone, which arise from the sides of the body, and are curved upward, laterally, and backward; the posterior part of each projects as a triangular process that fits into the angle between the squamous and the petrous part of the temporal bone and presents at its apex a downward-directed process, the spine of sphenoid bone.
The sphenoid bone [note 1] is an unpaired bone of the neurocranium. ... and form the greater wings of the sphenoid when fused into a larger structure. The ...
The lesser wings of the sphenoid or orbito-sphenoids are two thin triangular plates, which arise from the upper and anterior parts of the body, and, projecting lateralward, end in sharp points [Fig. 1]. In some animals, they remain as separate bones called orbitosphenoids.
The lateral surfaces of the body are united with the greater wings of the sphenoid and the medial pterygoid plates. Above the attachment of each greater wing is a broad groove, curved something like the italic letter f; it lodges the internal carotid artery and the cavernous sinus, and is named the carotid sulcus.
The lateral pterygoid plate of the sphenoid (or lateral lamina of pterygoid process) is broad, thin, and everted and forms the lateral part of a horseshoe like process that extends from the inferior aspect of the sphenoid bone, and serves as the origin of the lateral pterygoid muscle, which functions in allowing the mandible to move in a lateral and medial direction, or from side-to-side.
Sphenoid wing meningioma in magnetic resonance imaging (T1w contrast enhanced) Sphenoid wing meningioma in computed tomography which shows the reactive orbital hyperostosis. A sphenoid wing meningioma is a benign brain tumor near the sphenoid bone.
The sphenoid sinuses vary in size and shape; because of the lateral displacement of the intervening septum of sphenoid sinuses, the pair rarely is symmetrical. [3] When exceptionally large, the sphenoid sinuses may extend into the roots of the pterygoid processes or greater wings of sphenoid bone, and may invade the basilar part of the ...
Wing of sphenoid bone or ala ossis sphenoidalis can refer to: Greater wing of sphenoid bone (ala major ossis sphenoidalis) Lesser wing of sphenoid bone (ala minor ...