- frontal ostium
- frontal sinus ostium, ostium of frontal sinus apertura sinus frontalis.
Medical dictionary. 2011.
frontal ostium
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Sinus ostium — A sinus ostium (plural: sinus ostia) is the opening that connects a sinus to the nasal cavity itself. It is a tight area that tends to have a higher percentage of cilia than the surrounding mucosa. If the sinus ostium is blocked this will cause… … Wikipedia
apertura sinus frontalis — [TA] opening of frontal sinus: the external opening of the frontal sinus into the nasal cavity; its structure is variable, but it usually drains into the middle meatus. Called also frontal ostium, frontal sinus ostium, and ostium of frontal sinus … Medical dictionary
opening — A gap in or entrance to an organ, tube, or cavity. SEE ALSO: aperture, fossa, ostium, orifice, pore. access o. SYN: access. aortic o. SYN: aortic hiatus … Medical dictionary
Foramen — A natural opening. Although a foramen is usually through bone, it can be an opening through other types of tissue, as with the foramen ovale. * * * An aperture or perforation through a bone or a membranous structure. SYN: trema (1). [L. an… … Medical dictionary
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Embriología humana — Saltar a navegación, búsqueda La embriología humana es la parte de la embriología que estudia la formación y desarrollo del embrión y del feto en la especie humana. Se encuadra, junto con la anatomía, dentro de las ciencias morfológicas y es… … Wikipedia Español
Functional Endoscopic Sinus Surgery — (FESS) is a surgical modality for some diseases of the nose and paranasal sinuses. It is a relatively recent surgical procedure that uses the help of nasal endoscopes (which make use of Hopkins rod lens telescopes): these are endoscopes which… … Wikipedia
