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ethmoid cells


Definition: ethmoidal air cells; evaginations of the mucous membrane of the middle and superior meatus of the nasal cavity into the ethmoidal labyrinth forming multiple small paranasal sinuses; they are subdivided into anterior, middle and posterior ethmoidal sinuses.

See: anterior ethmoidal cells, middle ethmoidal cells, posterior ethmoidal cells

Synonym(s): cellulae ethmoidalesTA, ethmoid air cellsTA, ethmoidal cellsTA, antra ethmoidalia, ethmoidal sinuses, sinus ethmoidales

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.