zygomaticotemporal

Zygomaticotemporal is an anatomical term describing structures and regions that involve both the zygomatic bone (the cheekbone) and the temporal bone of the skull. In many descriptions it denotes the zygomaticotemporal region or suture where these two bones articulate along the zygomatic arch. In adulthood, this junction can be reduced to a subtle line as sutures may fuse with age.

Anatomy and landmarks

The zygomatic bone forms part of the cheek and the lateral wall of the orbit, articulating with the maxilla, sphenoid, frontal bone, and temporal bone. The temporal process of the zygomatic bone contributes to the zygomatic arch, which curves from the zygomatic bone to the temporal bone. Some skulls show a distinct zygomaticotemporal suture between the zygomatic and temporal bones, though its presence and clarity vary among individuals. The zygomaticotemporal foramen, when present in the zygomatic bone, transmits the zygomaticotemporal nerve.

Nerve considerations

The zygomaticotemporal nerve is a branch of the zygomatic nerve, itself a division of the maxillary nerve (V2). It provides sensory innervation to the skin of the temple and adjoining lateral forehead regions. It may carry postganglionic parasympathetic fibers to the lacrimal gland via communications with the lacrimal nerve.

Clinical relevance

Knowledge of the zygomaticotemporal region is important in craniofacial surgery, radiology, and trauma care, particularly in procedures involving the zygomatic arch or lateral orbital wall, and in avoiding sensory disturbance to the temple region.

See also

Zygomatic bone, Temporal bone, Zygomatic arch, Zygomaticotemporal foramen, Zygomatic nerve, Maxillary nerve (V2).