Zygomatic arch

The zygomatic arch is a bar of bone that runs horizontally along the side of the head, positioned in front of the ear and slightly above the tragus. This structure is created by the temporal process of the zygomatic bone in the front section, and the temporal bone's zygomatic process in the back section. The zygomaticotemporal suture runs diagonally downward and backward across the arch.

A space can be found deep to the zygomatic arch, separating it from the side of the skull. This space serves as a connection between the temporal fossa and the infratemporal fossa. Within this gap, the tendon of the temporalis muscle, deep temporal vessels, and nerves can pass through. The lower edge of the zygomatic arch allows for the attachment of the masseter muscle.