Frontal Margin Of The Greater Wing Of The Sphenoid Bone

Description

Greater wing of the sphenoid is highlighted at its frontal margin, the anterosuperior border where this paired cranial bone meets the frontal bone along the sphenofrontal suture. From a lateral cranial orientation, the margin lies superior to the infratemporal surface and anterior to the temporal margin that approaches the squamous temporal bone, placing it near the sphenoidal angle of the greater wing. Medially, the greater wing thickens toward the body of the sphenoid and the region of the superior orbital fissure, while laterally it contributes to the lateral wall of the cranium and the posterolateral wall of the orbit. This border matters because the sphenofrontal interface sits in the pterion region, where thin calvarial bone overlies the anterior branch of the middle meningeal artery and becomes a high-yield landmark in epidural hematoma discussions. Fronto-orbital and craniofacial approaches also depend on accurate appreciation of how the greater wing climbs superiorly to meet the frontal bone while remaining continuous posteriorly with the middle cranial fossa floor. Bone surface relief and crisp suture geometry in this fixed perspective support teaching of skull articulations without relying on surrounding soft tissue cues. Use this illustration in gross anatomy laboratories when students map cranial sutures, in radiology teaching files when correlating the pterion and lateral orbital wall on CT bone windows, and in neurosurgical or maxillofacial publishing to orient readers to the sphenoid’s contribution to the orbit and temporal region. Anatomical accuracy verified by SciePro's Medical Advisory Board.