Frontal Bone's Superficiliary Arch, Anterior View

Description

Frontal bone landmarks dominate this anterior view, centering on the paired superciliary arches (arcus superciliares) that form the prominent brow ridges immediately superior to the supraorbital margins (margo supraorbitalis). Medially, the arches converge toward the glabella, just superior to the nasion and the frontonasal suture region, while laterally they taper toward the frontal process of the zygomatic bone at the superolateral orbital rim. Along the superior orbital rim, the expected location of the supraorbital notch or foramen can be appreciated as a key interruption point for the supraorbital neurovascular bundle. Bone surface relief is the focus. These contours matter because the superciliary arch sits directly over the frontal sinus and the anterior cranial vault, so patterns of blunt facial trauma often track from brow impact to fractures of the supraorbital rim or anterior table of the frontal sinus. For regional anesthesia, the relationship between the supraorbital margin and the supraorbital notch/foramen guides a supraorbital nerve block, used for laceration repair, endoscopic brow procedures, and perioperative analgesia for forehead and scalp surgery. The fixed frontal perspective also supports teaching of palpable landmarks, letting you correlate surface anatomy of the brow with the underlying frontal bone without distraction from adjacent midface structures. Use this illustration in head and neck anatomy teaching (osteology of the cranium), in craniofacial and ENT reference material discussing frontal sinus approaches and supraorbital rim fractures, or in clinical education on supraorbital nerve block technique and brow laceration repair. Anatomical accuracy verified by SciePro's Medical Advisory Board.