Greater Wing Of The Sphenoid, Inferior View

Description

Greater wing of the sphenoid (ala major) dominates the inferior aspect of the central skull base in this image, with the rough infratemporal surface facing the viewer and the thicker posterior margin tapering toward the sphenoidal spine. Medially, the greater wing meets the body of the sphenoid where the foramen rotundum opens anteromedially, while the larger foramen ovale lies posterolateral to it on the same inferior surface. Farther posterior and lateral, the smaller foramen spinosum sits near the base of the sphenoidal spine, marking the transition toward the petrous and squamous regions of the temporal bone in situ. Margins for adjacent spaces are legible. These apertures are high-yield landmarks for neurovascular transit and skull base intervention. The foramen rotundum transmits the maxillary nerve (CN V2) into the pterygopalatine fossa, a clinically relevant route for perineural tumor spread from the midface and for endoscopic approaches targeting V2-related pain syndromes, while the foramen ovale conveys the mandibular nerve (CN V3) and is the osseous target for percutaneous procedures such as radiofrequency ablation in trigeminal neuralgia. The foramen spinosum carries the middle meningeal artery, and its position on the greater wing helps correlate extracranial bony anatomy with epidural hematoma risk after lateral cranial trauma. Use this illustration in head and neck anatomy courses, dental and maxillofacial curricula, and neurosurgical or ENT atlases that need a single, inferior-view reference for the foramina of the sphenoid and their transmitted structures. It also suits radiology teaching files when correlating skull base foramina with CT bone windows. Anatomical accuracy verified by SciePro's Medical Advisory Board.