Ethmoid Bone

The ethmoid bone  is a bone in the skull that separates the nasal cavity from the brain. It is located at the roof of the nose, between the eyes. The cubical bone is lightweight due to a spongy construction. The ethmoid bone is one of the bones that makes up the orbit of the eye. The ethmoid has three parts: the cribriform plate, the ethmodial labyrinth, and the perpendicular plate. (adapted from Wikipedia)

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