Cerebral Surface Of The Greater Wing Of The Sphenoid, Lateral View

Description

Greater wing of the sphenoid fills the frame from a lateral perspective, emphasizing its cerebral (endocranial) surface as it contributes to the floor and lateral wall of the middle cranial fossa. Along this concave plate, shallow impressions correspond to the adjacent temporal lobe, while fine bony ridges and sulci mark typical grooves for meningeal vessels on the internal aspect of the skull. Near the inferoposterior region, the area around the foramen spinosum and the spine of the sphenoid can be appreciated in relation to the arterial groove that courses superiorly across the squamous territory of the wing, and the broader plate lies anterolateral to the petrous part of the temporal bone and lateral to the body of the sphenoid. Bone relief is subtle. That meningeal topography matters in trauma and skull base work. The groove for the middle meningeal artery, commonly arising via the foramen spinosum, is the anatomic substrate for the classic epidural hematoma pattern after lateral cranial impact, and fractures traversing the greater wing can disrupt this vessel or the adjacent meningeal veins. For procedures targeting the trigeminal system, bony orientation at the greater wing helps teach safe trajectories toward the foramen ovale (mandibular nerve, V3) relative to nearby foramina and the lateral margin of the middle cranial fossa. Use this illustration in head and neck anatomy blocks, neuroanatomy teaching on cranial fossae, and neurosurgical or maxillofacial modules covering lateral skull base fractures, dural arterial supply, and percutaneous approaches via the foramina of the greater wing. It also supports figure work for radiology texts when correlating endocranial bony grooves and foramina with CT bone window anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.