Orbital Surface Of The Zygomatic Bone, Medial View

Description

Os zygomaticum is presented from a medial perspective focused on the facies orbitalis, the smooth concave surface that faces into the orbit and contributes to the lateral orbital wall and adjacent orbital floor. Superiorly, the surface approaches the lateral orbital rim near the frontozygomatic region, while inferiorly it slopes toward the zygomaticomaxillary interface that continues into the maxilla’s orbital surface. Posteriorly, the orbital surface leads toward the sphenozygomatic area at the lateral orbital apex, a junction that frames the lateral margin of the inferior orbital fissure. A small zygomatico-orbital foramen may be appreciated on this surface, marking entry into the zygomatic canal for the zygomatic nerve and accompanying vessels. Zygomaticomaxillary complex trauma often propagates along the orbital surface and its sutural margins, and minor displacement here can change orbital volume enough to contribute to enophthalmos or diplopia. This fixed medial viewpoint lets you read the contour that supports the globe, and it makes the relationship between the zygomatic orbital surface, the maxillary component of the orbital floor, and the posterior fissural region easier to teach than a lateral cheek view. Surface smoothness and edge definition help when comparing normal anatomy to reconstructed plates or patient-specific implants placed along the infraorbital buttress and lateral orbit. Use this illustration in head and neck anatomy curricula when introducing the bony orbit, the lateral orbital wall, and foraminal pathways of the zygomatic nerve (V2). It also fits well in maxillofacial surgery and ophthalmic plastics publications discussing orbital floor reconstruction, lateral orbitotomy landmarks, and fixation points in zygomaticomaxillary complex fractures. Anatomical accuracy verified by SciePro's Medical Advisory Board.