Spine of sphenoid bone
|Spine of sphenoid bone|
Sphenoid bone. Upper surface. (Spina angularis labeled at bottom left.)
Articulation of the mandible. Medial aspect. (Spine of sphenoid labeled at center top.)
|Latin||Spina ossis sphenoidalis|
|Anatomical terms of bone|
The great wings, or ali-sphenoids, are two strong processes of bone, which arise from the sides of the body, and are curved upward, lateralward, and backward; the posterior part of each projects as a triangular process which fits into the angle between the squama and the petrous portion of the temporal bone and presents at its apex a downwardly directed process, the spina angularis (sphenoidal spine). It serves as the origin for the sphenomandibular ligament.
- Anatomy figure: 27:02-04 at Human Anatomy Online, SUNY Downstate Medical Center - "Schematic view of key landmarks of the infratemporal fossa."
- Anatomy diagram: 34257.000-1 at Roche Lexicon - illustrated navigator, Elsevier
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