| Ethmoid sinus | |
|---|---|
 Frontal view of paranasal sinuses | |
 Coronal section of nasal cavities. | |
| Details | |
| Nerve | Posterior ethmoidal nerve |
| Identifiers | |
| Latin | cellulae ethmoidales, labyrinthi ethmoidales |
| MeSH | D005005 |
| TA98 | A06.1.03.005 |
| TA2 | 3180 |
| FMA | 84115 |
| Anatomical terms of bone | |
The ethmoid sinuses or ethmoid air cells of the ethmoid bone are one of the four paired paranasal sinuses.[1] Unlike the other three pairs of paranasal sinuses which consist of one or two large cavities, the ethmoidal sinuses entail a number of small air-filled cavities ("air cells").[2] The cells are located within the lateral mass (labyrinth) of each ethmoid bone and are variable in both size and number.[1] The cells are grouped into anterior, middle, and posterior groups; the groups differ in their drainage modalities,[2] though all ultimately drain into either the superior or the middle nasal meatus[3] of the lateral wall of the nasal cavity.
- ^ a b Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 64
- ^ a b Morton, David A. (2019). The Big Picture: Gross Anatomy. K. Bo Foreman, Kurt H. Albertine (2nd ed.). New York. p. 246. ISBN 978-1-259-86264-9. OCLC 1044772257.
{{cite book}}: CS1 maint: location missing publisher (link) - ^ Moore, Keith L.; Dalley, Arthur F.; Agur, Anne M. R. (2017). Essential Clinical Anatomy (6th ed.). Lippincott Williams & Wilkins. p. 968. ISBN 978-1496347213.