Definition for Difference between revisions of "Paranasal sinus"
From Biology Forums Dictionary
(Created page with "Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity (maxillary sinuses), above the eyes (frontal sinuses), between the eyes (ethmoid sin...") |
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| − | + | 1. Are a group of four paired air-filled spaces that surround the nasal cavity (maxillary sinuses), above the eyes (frontal sinuses), between the eyes (ethmoid sinuses), and behind the ethmoids (sphenoid sinuses). The sinuses are named for the facial bones in which they are located.<br> | |
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| + | 2. Are mucous membrane-lined cavities in the frontal, maxillary, sphenoid and ethmoid bones. | ||
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| + | [[Category:Biology]] | ||
Latest revision as of 16:46, 29 December 2019
1. Are a group of four paired air-filled spaces that surround the nasal cavity (maxillary sinuses), above the eyes (frontal sinuses), between the eyes (ethmoid sinuses), and behind the ethmoids (sphenoid sinuses). The sinuses are named for the facial bones in which they are located.
2. Are mucous membrane-lined cavities in the frontal, maxillary, sphenoid and ethmoid bones.