Ethmoid bones

Ethmoid bone

An irregularly shaped bone lying between the orbital plates of the frontal and anterior to the sphenoid bone; it consists of two lateral masses of thin plates enclosing air cells, attached above to a perforated horizontal lamina, the cribriform plate, from which descends a median vertical or perpendicular plate in the interval between the two lateral masses; the bone articulates with the sphenoid, frontal, maxillary, lacrimal, and palatine bones, the inferior nasal concha, and the vomer; it enters into the formation of the anterior cranial fossa, the orbits, and the nasal cavity.

Synonym: os ethmoidale.

Retrieved from ""
First | Previous (Ethmoid bone) | Next (Ethmoid labyrinth) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.