Frontal Bone Displaying Its Orbital Part, Anterior View

Description

Frontal bone (os frontale) dominates the superior face in this anterior perspective, with the pars orbitalis highlighted as the paired orbital plates forming the roof of each orbit. Each plate sweeps posteriorly from the supraorbital margin and sits superior to the globe, creating the superior orbital wall while remaining separated in the midline by the ethmoidal notch region. Laterally, the orbital surface broadens toward the lacrimal gland fossa; medially, it narrows toward the trochlear fovea and the attachment site of the trochlea of the superior oblique. Bone contours are the story here. Orbital roof anatomy matters when assessing superior orbital trauma and planning approaches that cross the fronto-orbital junction. Fractures of the orbital plate can communicate with the anterior cranial fossa, raising concern for dural injury, pneumocephalus, and cerebrospinal fluid rhinorrhea, and the anterior position helps orient the surgeon or radiologist to the relationship between the supraorbital rim, the orbital cavity, and the cranial vault. The smooth concavity of the orbital surface also provides a reliable teaching contrast with the more irregular adjacent cranial base bones and helps explain why thin bone here can fail with blunt force despite an intact rim. Use this illustration in head and neck anatomy curricula when introducing the bony orbit, or in maxillofacial and neurosurgical publications discussing orbital roof fracture patterns, fronto-orbital approaches, and reconstruction landmarks for plating along the supraorbital margin. It also supports radiology teaching files that correlate CT findings at the superior orbital wall with clinical signs such as diplopia or periorbital emphysema. Anatomical accuracy verified by SciePro's Medical Advisory Board.