| foramen zygomaticofaciale | The opening on the lateral surface of the zygomatic bone below the orbital margin that transmits the zygomaticofacial nerve. Synonym: foramen zygomaticofaciale, malar foramen. (05 Mar 2000) |
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| foramen zygomatico-orbitale | The common opening on the orbital surface of the zygomatic bone of the canals transmitting the zygomaticofacial and zygomaticotemporal nerves; sometimes each of these canals has a separate opening on the orbital surface. Synonym: foramen zygomatico-orbitale. (05 Mar 2000) |
| foramen zygomaticotemporale | The opening, on the temporal surface of the zygomatic bone, of the canal that gives passage to the zygomaticotemporal nerve. Synonym: foramen zygomaticotemporale. (05 Mar 2000) |
| frontal foramen | An occasional small opening in the supraorbital margin of the frontal bone medial to the supraorbital foramen. Synonym: foramen frontale. (05 Mar 2000) |