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.
^ abIllustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 64
^ abMorton, 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.
The ethmoidsinuses or ethmoid air cells of the ethmoid bone are one of the four paired paranasal sinuses. Unlike the other three pairs of paranasal sinuses...
ophthalmic nerve (CN V1). The ethmoidal sinuses, which are formed from several discrete air cells within the ethmoid bone between the nose and the eyes. They...
forehead Ethmoidsinus, formed from several discrete air cells within the ethmoid bone between the eyes and under the nose Sphenoidal sinus, in the sphenoid...
paranasal sinuses – the frontal sinus, the sphenoid sinus, the ethmoidsinus and the maxillary sinus drain into regions of the nasal cavity. The sinuses are...
sinus or the ethmoidsinus. When the maxillary sinus is involved, the inferior oblique muscle may be damaged. The cause of silent sinus syndrome is not...
anterior ethmoidal nerve. It contributes blood supply to the ethmoidsinuses, frontal sinuses, the dura mater, lateral nasal wall, and nasal septum. It issues...
or orbital side of the ethmoid labyrinth. Sinusitis may extend to the central nervous system, where it may cause cavernous sinus thrombosis, retrograde...
In the ethmoid bone, a sickle shaped projection, the uncinate process, projects posteroinferiorly from the ethmoid labyrinth. Between the posterior edge...
from the ethmoidsinuses and extend through the middle meatus into the nasal cavity. Antrochoanal polyps usually arise in the maxillary sinus and extend...
partitions between the ethmoidsinuses in order to create larger sinus cavities. This procedure treats sinus infections and sinus obstructions that have...
as maxillary sinus ostium, maxillary ostium, or opening from the maxillary sinus)[citation needed] is the opening of a maxillary sinus into the middle...
nerve (CN V1)). It provides sensory innervation to the sphenoid sinus and ethmoidsinus, and part of the dura mater in the anterior cranial fossa. The...
better delivery of local therapeutic agents into the ethmoidsinuses. Functional Endoscopic Sinus Surgery is considered a success if most of the symptoms...
the ethmoidal sinuses or ethmoidal air cells, which are a variable number of small cavities in the lateral mass of the ethmoid. The ethmoid articulates...
passageways. Ethmoidectomy treats ethmoid sinusitis through removing the inflamed mucosal lining on the ethmoidsinus. The method of conducting ethmoidectomy...
periosteum of the floor of the orbit, and the mucosa of the sphenoid sinus and ethmoidsinus.: 370 Pharyngeal branch of vagus nerve This article incorporates...
Ethmoid hematoma is a progressive and locally destructive disease of horses. It is indicated by a mass in the paranasal sinuses that resembles a tumor...
ethmoid nerve – conveys sensation in the anterior (front) half of the nasal cavity: (a) the internal areas of the ethmoidsinus and the frontal sinus;...
sinus, it is possible that it may then spread to the orbit or to the ethmoidsinus. Odontogenic infection can be managed relatively easily if treated in...
The pyramid-shaped maxillary sinus (or antrum of Highmore) is the largest of the paranasal sinuses, located in the maxilla. It drains into the middle...
of the labyrinth of the ethmoid. These structures then open into the semilunar hiatus in the middle meatus. Each frontal sinus is situated between the...
provides parasympathetic innervation to the sphenoid sinus, frontal sinus, maxillary sinus, ethmoidsinus, and nasal cavity. This nerve also includes taste...
the skull: Ethmoid bone Sphenoid bone Occipital bone Frontal bone Temporal bone Occipital sinus Superior sagittal sinus Superior petrosal sinus Foramen cecum...
differ) inferior/anterior: 374 to the ethmoid bulla. The maxillary sinus also opens below the bulla. The ethmoid bulla begins to develop between 8 weeks...
increased space between the orbita, due to increasing width of the ethmoidsinuses, field defects during the development, a nasal capsule that fails to...
crista galli (proximally to the cribriform plate and to the frontal and ethmoidsinuses). Posteriorly, it blends into the upper surface of the cerebellar tentorium...
conchae attach to the ethmoid bone. The openings to the posterior ethmoidal sinuses exist under the superior meatus. The sphenoid sinus ostium exists medial...
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