Sphenoidal Margin Of The Temporal Bone In Anterior View

Description

Sphenoidal margin of the temporal bone occupies the anterosuperior border of the squamous part, where its serrated edge meets the greater wing of the sphenoid to form the sphenosquamosal suture. In anterior perspective, the margin sits medial to the root of the zygomatic process and superior to the mandibular fossa and articular tubercle, orienting the viewer to the lateral cranial wall. Adjacent contours of the temporal squama frame the pterion region, where temporal, sphenoid, and parietal contributions converge in close apposition. This junction matters because small differences in the sphenosquamosal relationship change the thickness profile at the pterion, a common site of fracture with potential laceration of the middle meningeal artery and subsequent epidural hematoma. For surgical anatomy, the precise placement of the sphenoidal margin relative to the zygomatic root helps set bony landmarks for a pterional approach and for tailoring the frontotemporal bone flap without encroaching on the orbitosphenoid junction. Edges are modeled with enough surface relief to read serrations and beveling along the articulating border. A thin bone window. Use this illustration in neuroanatomy and head and neck courses when teaching cranial sutures, pterion surface anatomy, and the bony limits of the temporal fossa, or in operative atlases describing pterional and frontotemporal craniotomies and burr hole placement relative to the sphenoid wing. Anatomical accuracy verified by SciePro's Medical Advisory Board.