A Lateral View Of The Greater Sphenoid Wing Showing Its Infratemporal Surface

Description

Rotating into a true lateral cranial orientation, the animation isolates the greater wing of the sphenoid (ala major) and tracks along its infratemporal surface on the external aspect of the skull base. A horizontal crest is used as the dividing ridge, with the smoother temporal surface positioned superior to it and the infratemporal surface lying inferior and slightly posterior, facing toward the infratemporal fossa. As the camera glides, adjacent margins of the ala major are hinted in relation to the squamous temporal and frontal bones, reinforcing how this wing occupies the lateral wall of the cranium while also contributing to the floor of the middle cranial base. That bony geography matters in the operating room and on CT. The infratemporal surface sits in the neighborhood of the foramen ovale and foramen spinosum on the greater wing, key portals for mandibular nerve (V3) passage and the middle meningeal artery, respectively, and frequent landmarks in percutaneous trigeminal procedures and skull base approaches. Seeing the crest and surface transition as a continuous sweep clarifies a common student failure point, namely mixing the temporal surface with the infratemporal surface when translating between dry skull anatomy, axial imaging, and the 3D arrangement of the infratemporal fossa. Orientation clicks. Use this animation in head and neck anatomy courses, dental and maxillofacial curricula, and radiology teaching files that introduce skull base foramina and lateral cranial wall landmarks, and in publisher layouts discussing infratemporal fossa access corridors. Anatomical accuracy verified by SciePro's Medical Advisory Board.