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Definition of Ethmoid bone
1. Noun. One of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity.
Definition of Ethmoid bone
1. Noun. The bone of the skull between the eyes and at the roof of the nose. ¹
¹ Source: wiktionary.com
Medical Definition of Ethmoid bone
1. 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. (05 Mar 2000)
Lexicographical Neighbors of Ethmoid Bone
Literary usage of Ethmoid bone
Below you will find example usage of this term as found in modern and/or classical literature:
1. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"THE ethmoid bone. one on each side for the lingula. The six for the anterior
sphenoid are one for each lesser wing, two for the anterior part of the body, ..."
2. An Elementary Treatise on Human Anatomy by Joseph Leidy (1889)
"THE ethmoid bone. The ethmoid bone ' is situated at the fore part of the cranium,
in advance of the sphenoid and beneath the frontal bone. ..."
3. Anatomy of the Cat by Jacob Ellsworth Reighard, Herbert Spencer Jennings (1901)
"This is the concha nasalis superior ethmoid bone. ... The ethmoid bone closes in
the cranial cavity at its cranial end and extends forward into the nasal ..."
4. Transactions of the American Ophthalmological Society Annual Meeting by American Ophthalmological Society (1885)
"Abscess of both Frontal Sinuses, and of ethmoid bone, Operation and Complete
Recovery, by Dr. CS Bull. Discussed by Dr. Knapp. 8. ..."
5. Human Osteology: Comprising a Description of the Bones with Delineations of by Luther Holden, James Shuter (1885)
"... articulates with the ethmoid bone. Each side of the ' body' is more or less
distinctly marked by a broad groove which winds upward in a gentle curve, ..."
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