Zygomatic Bone's Temporal Process, Medial View

Description

Zygomatic bone anatomy is centered here on the temporal process, viewed from the medial side where its internal surface slopes posterolaterally toward the temporal fossa. The process projects posteriorly from the zygomatic body and terminates at the zygomaticotemporal suture, where it meets the temporal bone’s zygomatic process to form the zygomatic arch. Along this medial aspect, the concavity faces the temporalis muscle and the deep temporal fascia, while the thicker inferior margin corresponds to the attachment region for the deep fibers of masseter along the arch. Facial trauma often targets the zygomaticomaxillary complex, and displacement at the arch can narrow the temporal fossa and impinge on temporalis excursion, producing trismus, a finding clinicians associate with zygomatic arch fractures. Medial surface geometry also matters during reduction of isolated arch injuries and during approaches that work in the temporalis plane (for example, coronal access or Gillies-type elevation), where the surgeon relies on the arch’s internal contour as a tactile and visual landmark. Orientation is unambiguous in this perspective: the concave internal surface faces the temporal fossa, while the posterior end marks the suture line that defines continuity with the temporal bone. Use this illustration in head and neck anatomy teaching to anchor the concept of the zygomatic arch as a composite structure and to clarify how the temporal fossa relates to the internal surface of the arch in a single fixed view. It also suits maxillofacial trauma lectures, operative atlases describing arch reduction, and radiology correlation captions for medial oblique CT reconstructions of the zygomaticotemporal region. Anatomical accuracy verified by SciePro's Medical Advisory Board.