ectethmoid


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eth·moi·dal lab·y·rinth

[TA]
a mass of air cells with thin bony walls forming part of the lateral wall of the nasal cavity; the cells are arranged in three groups, anterior, middle, and posterior, and are closed laterally by the orbital plate which forms part of the wall of the orbit.
Farlex Partner Medical Dictionary © Farlex 2012

ectethmoid

(ĕk-tĕth′moyd) [″ + ethmos, sieve, + eidos, form, shape]
The lateral mass of the ethmoid bone.
Medical Dictionary, © 2009 Farlex and Partners
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References in periodicals archive ?
episcopus (internal 2) share the following characters: intermediate suprameatic process (character 6, condition 1); reduced process of the ectethmoid (character 12, condition 1); long maxillopalatine process (character 13, condition 1).
Data of phenetic analysis through osteological characters does not relation Anastomus of any other genus, but it also ensures its monophyly, as observed by the present study, having as synapomorphies the characters 11 (body of the ectethmoid, condition 0, vestigial) and 30 (intercotilaris crest of the mandible, condition 1, inconspicuous) (VERHEYEN, 1959).
The Neomorphinae is more similar to the other terrestrial cuckoos (Crotophaginae and Centropodinae) mainly in the ectethmoid and lacrimal bones, and in the frontal region.
Of these, nine were too inconsistent within species to be useful: Shape of the lateral margin of the ectethmoid plate, size of the supraotic fenestra, relative lengths of the metatarsal trochleae, shape of the maxillopalatine bones, shape of the internal (= medial) process of the mandible, presence and nature of the Pocock foramina (Pocock 1966), the degree of the distal bend of the tarsometatarsus, degree of the medial curve of the rostral palatine, and presence and shape of a manubrium-sternum bridge.