zygomatico-orbital foramina zygomatico-orbital foramina the zygomatico-orbital foramina are two canals in the skull, that allow nerves to pass through. the orifices are seen on the orbital process of the zygomatic bone. zygomatico-orbital foraminaleft zygomatic bone. malar surface.detailsidentifierslatinforamen zygomaticoorbitaleta98a02.1.14.009ta2827fma53168anatomical terms of bone one of these canals opens into the temporal fossa, the other on the malar surface of the bone. the former transmits the zygomaticotemporal, the latter the zygomaticofacial nerve.