ethmoid bone


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ethmoid bone

[′eth‚mȯid ‚bōn]
(anatomy)
An irregularly shaped cartilage bone of the skull, forming the medial wall of each orbit and part of the roof and lateral walls of the nasal cavities.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Its rostral limit was present at the level of cranial face of first molar tooth and extends upto level of cribriform plate of ethmoid bone (Fig.
It also articulates with the ethmoid bone, the lacrimal bones and the sphenoid bone.
The contributions of the ethmoid bone and the vomer to the total bone surface area were inversely proportional; specimens with the largest ethmoid bones had the smallest vomers, and vice versa.
(1999) Computed tomographic imaging to determine the frequency of anatomic variations in pneumatization of the ethmoid bone. Eur Arch Otolaryngol 256: 69-71.
Monostotic fibrous dysplasia originating from ethmoid bone: Treatment with endoscopic approach.
The middle concha is formed by the medial part of the ethmoid bone. As it elongates in the nasal cavity, anterior-superior stabilization is provided by the cribriform plate, posterior and lateral stabilization is provided by the lamina papyracea.
(4) Pneumatization of the middle turbinate occurs as a part of the normal pneumatization process in the ethmoid bone. (3) The anterior and middle ethmoid cells begin as evaginations from the nasal cavity into the middle meatus at about the third month of fetal development.
(13,14) The infection spreads rapidly to adjacent sinuses and the orbit and continues into the cranium via the ethmoid bone or orbital vessels.