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ethmoid sinus |
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ethmoid sinus, n one of the facial cavities, located beneath the nasal bridge, through which air flows. ethmoid 1. sievelike; cribriform. 2. the ethmoid bone. ethmoid bone the sievelike bone that forms a roof for the nasal fossae and part of the floor of the rostral cranial fossa. See also Table 10. ethmoid sinus see concha. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Most involved the frontal sinus, although the maxillary sinus, ethmoidal cells, and sphenoidal sinus can also be affected. excision of ethmoidal cells or of a portion of the ethmoid bone. A passage from the middle meatus of the nose communicating with the anterior ethmoidal cells and frontal sinus. |
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