The orbit, or eye socket, is formed by the juncture of a number of bones. Of these, the sections of the ethmoid bone are located between the orbits, forming part of the inner wall of each orbital cavity (called the orbital plate) and lateral wall and part of the roof of the nasal cavity. The frontal bone forms most of the upper surfaces, while the maxilla and zygomatic bone form the lower and outer surfaces. The lachrymal bone also forms part of the inner surface, in conjunction with the ethmoid bone. Research Orbit