Frontal Bone, Lateral View

Description

Laterally, the frontal bone forms the anterior roof of the orbit and the forehead (squama frontalis), with the superciliary arch and supraorbital margin projecting anteriorly above the orbital cavity. Superiorly on the squamous part, the temporal line sweeps posteroinferiorly toward the frontozygomatic region, marking the limit of the temporal fossa and the attachment of the temporal fascia. Inferior and posterior margins imply the coronal suture with the parietal bone and the frontosphenoidal contact at the orbital roof, even when the frontal bone is presented in isolation. For teaching cranial surface anatomy, a lateral frontal bone view clarifies landmarks that guide palpation and surgical planning around the brow and superior orbit. The supraorbital notch or foramen, when present along the supraorbital margin, localizes the supraorbital nerve and vessels, a routine target for regional anesthesia in laceration repair and periocular procedures. Frontal sinus relationships sit just medial to this field, so understanding where the superciliary region thickens helps interpret fracture patterns and anticipate sinus involvement after blunt trauma. Medical educators commonly place this plate in head and neck anatomy blocks to anchor discussions of the temporal line, temporal fascia, and the boundaries of the orbit, and it also supports figure labeling in maxillofacial surgery or emergency medicine texts covering supraorbital rim fractures and brow approaches. It fits well in atlases, exam banks, and patient-facing diagrams explaining forehead injuries and supraorbital nerve blocks. Anatomical accuracy verified by SciePro's Medical Advisory Board.