ectethmoid bone

ectethmoid bone
labyrinthus ethmoidalis.

Medical dictionary. 2011.

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  • ectethmoid — SYN: ethmoidal labyrinth. [G. ektos, outside, + ethmoid] * * * ect·eth·moid ek teth .mȯid n either of two lateral parts of the ethmoid bone that form part of the anterior wall of the orbit ectethmoid adj lateral or external to the ethmoid bone * …   Medical dictionary

  • ectethmoid — parethmoid (a paired deep bone lying in the front of the orbit under the prefrontal) …   Dictionary of ichthyology

  • parethmoid bone — a paired deep bone of perichondral origin lying in the front of the orbit under the prefrontal. Also called pleurethmoid, lateral ethmoid, prefrontal, exethmoid, and also ectethmoid (latter only present in birds so not be be used in fishes) …   Dictionary of ichthyology

  • labyrinthus ethmoidalis — [TA] ethmoidal labyrinth: either of the paired lateral masses of the ethmoid bone, consisting of numerous thin walled cellular cavities, including the ethmoidal cells and the nasal conchae. Called also ectethmoid, ectethmoid bone, olfactory… …   Medical dictionary

  • Alvarezsauridae — Eumetazoa Alvarezsaurids Temporal range: Late Jurassic Late Cretaceous, 160–65.5 Ma …   Wikipedia

  • Labyrinth — The maze of canals in the inner ear. The labyrinth is the portion of the ear that is responsible for sensing balance. Inflammation of the labyrinth (labyrinthitis) can be accompanied by vertigo. * * * Any of several anatomic structures with… …   Medical dictionary

  • Prefrontal — Pre*fron tal, a. (Anat. & Zo[ o]l.) Situated in front of the frontal bone, or the frontal region of the skull; ectethmoid, as a certain bone in the nasal capsule of many animals, and certain scales of reptiles and fishes. n. A prefrontal bone or… …   The Collaborative International Dictionary of English

  • exethmoid — parethmoid (a paired deep bone of perichondral origin lying in the front of the orbit under the prefrontal. Also called pleurethmoid, prefrontal, exethmoid and, incorrectly ectethmoid, as this latter is only in birds) …   Dictionary of ichthyology

  • lateral ethmoid — parethmoid (a paired deep bone of perichondral origin lying in the front of the orbit under the prefrontal. Also called pleurethmoid, prefrontal, exethmoid and, incorrectly ectethmoid, as this latter is only in birds) …   Dictionary of ichthyology

  • os ethmoideum laterale — (plural ossa ethmoidea lateralia)) parethmoid (a paired deep bone of perichondral origin lying in the front of the orbit under the prefrontal. Also called pleurethmoid, prefrontal, exethmoid and, incorrectly ectethmoid, as this latter is only in… …   Dictionary of ichthyology

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