Zygomatic Process Of The Human Frontal Bone, Lateral View

Description

Zygomatic process of the frontal bone forms the superolateral margin of the orbit, where the frontal squama thickens and projects laterally to meet the zygomatic bone at the frontozygomatic (zygomaticofrontal) suture. From a lateral skull perspective, the process sits inferior to the frontal eminence and anterior to the greater wing of the sphenoid, creating the upper portion of the lateral orbital rim. Its external surface blends posteriorly into the temporal line, while its orbital surface curves medially to contribute to the roof and lateral wall of the bony eye socket. This is dense cortical bone. Lateral orbital rim anatomy matters in blunt facial trauma because force commonly concentrates at the frontozygomatic region, producing rim fractures or suture diastasis that alter orbital volume and can contribute to enophthalmos or diplopia. For operative planning, the zygomatic process provides a palpable and visible landmark for open reduction and internal fixation, with plates often placed along the frontozygomatic buttress to restore the contour of the cranium and the orbit. The fixed lateral viewpoint supports teaching of the neurocranium’s facial buttresses and clarifies how the frontal bone relates to the orbit and the zygomatic complex without distracting internal cranial base detail. Use this illustration in gross anatomy and head and neck modules when introducing skull sutures, orbital boundaries, and the relationship between the frontal bone and zygomatic bone. It also fits maxillofacial surgery references, emergency medicine teaching on lateral orbital rim fractures, and radiology primers that correlate surface landmarks with CT assessment of the orbit and cranium. Anatomical accuracy verified by SciePro's Medical Advisory Board.