Greater Wing Of The Sphenoid, Lateral View

Description

Greater wing of the sphenoid dominates the lateral skull base in this lateral perspective, forming a broad, convex plate that contributes to the temporal fossa superiorly and the infratemporal surface inferiorly. Anteriorly, its orbital surface turns medially toward the lateral wall of the orbit, while the posterior margin approaches the squamous temporal bone at the spheno-squamosal suture. Along the greater wing, key apertures of the middle cranial fossa are oriented toward the extracranial spaces, with the foramina ovale and spinosum positioned posterolaterally relative to the superior orbital fissure, and the sphenoid spine projecting near the posterolateral edge. Clinically, the greater wing is a landmark-rich corridor for neurovascular passage between the cranial cavity and the face. Foramen spinosum transmits the middle meningeal artery, and its relationship to the thin squamous temporal region explains why lateral skull trauma in this area can produce an epidural hematoma. Foramen ovale carries the mandibular nerve (CN V3) and accessory meningeal artery, a spatial relationship used in percutaneous procedures for trigeminal neuralgia, where trajectory planning hinges on knowing the lateral skull base contours and the position of the sphenoid spine. Bone detail matters here. Neurosurgery and head and neck anatomy courses use this illustration to teach the boundaries of the middle cranial fossa, the pterion region, and suture relationships that orient a pterional craniotomy. Medical publishers can pair it with labeled diagrams of the foramina (ovale, spinosum, rotundum) and adjacent spaces (temporal fossa, infratemporal fossa, orbit) for exam-prep atlases and operative approach overviews. Anatomical accuracy verified by SciePro's Medical Advisory Board.