Anatomical Structure And Characteristics Of The Zygomatic Process Of The Frontal Bone

Description

Zygomatic process of the frontal bone (processus zygomaticus ossis frontalis) forms the lateral continuation of the supraorbital margin and projects inferolaterally toward the frontal process of the zygomatic bone. Along the superolateral orbital rim, its external surface blends into the frontal squama (forehead), while the orbital surface contributes to the roof and lateral wall of the orbit, just superior to the lacrimal fossa region and lateral to the trochlear fovea. At its distal end, the frontozygomatic suture (sutura frontozygomatica) is typically identifiable as the junction with the zygomatic bone, marking the transition from the frontal bone’s orbital rim to the zygomatic bone’s lateral orbital border. A compact landmark. Craniofacial trauma frequently involves this region because the frontozygomatic suture acts as a buttress within the zygomaticomaxillary complex and is assessed in suspected tripod fractures and lateral orbital rim disruptions on CT. The relationship between the zygomatic process and the supraorbital margin also matters in brow and upper eyelid surgery, where incision planning must respect the contour of the lateral orbital rim and the nearby course of the supraorbital neurovascular bundle as it exits at the supraorbital notch or foramen more medially. Strong bony relief and consistent surface anatomy make this perspective well suited for teaching how the lateral orbital rim is assembled from frontal and zygomatic components, and why malalignment can alter globe position and canthal symmetry. Medical educators can place this illustration into head and neck anatomy modules when covering the orbit, cranial sutures, and facial skeleton buttresses, and authors can pair it with CT correlation figures in maxillofacial trauma chapters to orient readers to the frontozygomatic suture line used for surgical fixation. It also supports patient-facing materials for lateral orbital rim fracture repair and oculoplastic approaches that reference the supraorbital margin and lateral brow contour. Anatomical accuracy verified by SciePro's Medical Advisory Board.