Question: what is the name of the bone that makes up most of the posterior surface of orbit
Answer: The bony walls of the orbital canal in humans do not derive from a single bone , but a mosaic of seven embryologically distinct structures : the zygomatic bone laterally , the sphenoid bone , with its lesser wing forming the optic canal and its greater wing forming the lateral posterior portion of the bony orbital process , the maxillary bone inferiorly and medially which , along with the lacrimal and ethmoid bones , forms the medial wall of the orbital canal .