WordNet

one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity (同)ethmoid_bone

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/04/18 01:43:45」(JST)

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The ethmoidal sinuses or ethmoidal air cells of the ethmoid bone are one of the four paired paranasal sinuses. They are a variable in both size and number of small cavities in the lateral mass of each of the ethmoid bones and cannot be palpated during an extraoral examination.^[1] They are divided into the anterior, middle and posterior groups (see below). The ethmoidal air cells consist of numerous thin-walled cavities situated in the ethmoidal labyrinth and completed by the frontal, maxilla, lacrimal, sphenoidal, and palatine bones. They lie between the upper parts of the nasal cavities and the orbits, and are separated from these cavities by thin bony laminae.^[2]

Groups of sinuses

The groups of the ethmoidal cells are air cells:^[2]

The posterior group (sometimes the posterior ethmoidal sinus) drains into the superior meatus above the middle nasal concha; sometimes one or more opens into the sphenoidal sinus.
The middle group (sometimes the middle ethmoidal sinus) drains into the middle meatus of the nose on or above the bulla ethmoidalis.
The anterior group (sometimes the anterior ethmoidal sinus) drains into the middle meatus of the nose by way of the infundibulum.

Development

The ethmoidal cells (sinuses) are not present at birth, however by 2 years of age they are recognisable through the use of Computerised Tomography (CT) scanning.^[3]

Innervation

The ethmoidal air cells receive sensory fibers from the anterior and posterior ethmoidal nerves, and the orbital branches of the pterygopalatine ganglion, which carry the postganglionic parasympathetic nerve fibers for mucous secretion from the facial nerve.

Haller cell

Haller cells are infraorbital ethmoidal air cells lateral to the lamina papyracea. These may arise from the anterior or posterior ethmoidal sinuses.

Pathology

Ethmoid sinus cancer that has spread to the lungs

Ethmoid sinus cancer that has spread to the lymph nodes

Acute ethmoiditis in childhood and ethmoidal carcinoma may spread superiorly causing meningitis and cerebrospinal fluid leakage or it may spread laterally into the orbit causing proptosis and diplopia.^[4]

Additional images

Ethmoid bone from the right side.
Left orbicularis oculi, seen from behind.
Lateral wall of nasal cavity; the three nasal conchæ have been removed.
Paranasal sinuses
Ethmoid cells
Ethmoid sinus. Ethmoidal air cells.Deep dissection. Superior view.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

^ Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 64
^ ^a ^b Otorhinolaryngology, Head and Neck Surgery, Anniko, Springer, 2010, page 188
^ Moore, K.L Et al(2014). Clinically Oriented Anatomy. Baltimore: Page960
^ Human Anatomy, Jacobs, Elsevier, 2008, page 210

External links

Anatomy figure: 33:04-07 at Human Anatomy Online, SUNY Downstate Medical Center
Anatomy photo:33:st-0711 at the SUNY Downstate Medical Center

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English Journal

Ethmoidal metastasis as a first presentation of breast cancer: a case report.

Maity A1, Maughan E1, Vasani S1, Alusi G1.
Annals of the Royal College of Surgeons of England.Ann R Coll Surg Engl.2018 Apr 1:e1-e3. doi: 10.1308/rcsann.2018.0065. [Epub ahead of print]
PMID 29607722

Endoscopic surgery of the olfactory cleft.

Jankowski R1, Rumeau C2, Gallet P2, Nguyen DT2, Russel A2, Toussaint B2.
European annals of otorhinolaryngology, head and neck diseases.Eur Ann Otorhinolaryngol Head Neck Dis.2018 Apr;135(2):137-141. doi: 10.1016/j.anorl.2017.09.005. Epub 2017 Oct 23.
PMID 29074286

Quantitative proteomics of CSF reveals potential predicted biomarkers for extranodal NK-/T-cell lymphoma of nasal-type with ethmoidal sinus metastasis.

Gong Y1, Pu W1, Jin H2, Yang P3, Zeng H2, Wang Y1, Pang F1, Ma X4.
Life sciences.Life Sci.2018 Apr 1;198:94-98. doi: 10.1016/j.lfs.2018.02.035. Epub 2018 Feb 26.
PMID 29496492

Japanese Journal

Blowout骨折：骨折後端を確実に見るための内視鏡併用手術

創傷 9(1), 1-7, 2018
NAID 130006302461

意識障害を契機に発見された前頭洞型髄膜脳瘤例

日本鼻科学会会誌 56(4), 564-569, 2017
NAID 130006286341

A Case of Sinonasal Inverted Papilloma with Intracranial Extension after Multiple Recurrences

耳鼻咽喉科臨床　補冊 151(0), 40-41, 2017
NAID 130006235241

Related Pictures

★リンクテーブル★

リンク元	「篩骨胞」
拡張検索	「ethmoidal sinusitis」

「篩骨胞」

Ethmoidal sinus
	Paranasal sinuses
	Coronal section of nasal cavities.
Details
Nerve	posterior ethmoidal nerve
Identifiers
Latin	Cellulae ethmoidales,; labyrinthi ethmoidales
MeSH	A04.531.621.267
Dorlands; /Elsevier	c_19/12225634
TA	A06.1.03.005
FMA	71958
	Anatomical terms of bone [edit on Wikidata]