Maxillary sinus
Outline of bones of face, showing position of air sinuses.
Coronal section of nasal cavities.
Latin	'
Gray's	subject #223 999
System
MeSH	A04.531.621.578
Dorlands/Elsevier	{{{DorlandsPre}}}/{{{DorlandsSuf}}}

Maxillary sinuses (or Antrum of Highmore) are cavities within the maxilla, the bone that forms the lower face/upper jaw. The maxillary sinuses are located just below the bony prominences of the cheeks, one beneath each eye. Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Elseviers logo Elsevier, the worlds largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. ... A sinus is a pouch or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. ... The maxillae are the largest bones of the face, except for the mandible, and form, by their union, the whole of the upper jaw. ... The word cheek can mean several things. ... This article or section does not cite its references or sources. ...

The maxillary sinus is the largest paranasal sinus. Due to its location, it is related to the upper teeth, the tear ducts, and the floors of the orbital cavities. Pyramidal in shape, it sits within the body of the maxilla bone. It is lined with respiratory epithelium and contains air, or occasionally mucus during sinusitis. It is linked to the middle ear by the hiatus semilunaris. The paranasal sinuses are eight (four pairs) air-filled spaces, or sinuses, within the bones of the skull and face. ... Tears trickling down the cheeks Lacrimation is the bodys process of producing tears, which are a liquid to clean and lubricate the eyes. ... It has been suggested that Gas exchange be merged into this article or section. ... In zootomy, epithelium is a tissue composed of a layer of cells. ... Mucus is a slippery secretion of the lining of various membranes in the body (mucous membranes). ... For an alternative meaning, see ear (botany). ...

Maxillary sinusitis is inflammation of the maxillary sinuses. Sinusitis is inflammation, either bacterial, fungal, viral, allergic or autoimmune, of the paranasal sinuses. ... Inflammation is the first response of the immune system to infection or irritation and may be referred to as the innate cascade. ... A sinus is a pouch or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. ...

External links

• SUNY Radiology Headneck:17Maxill