opening of the frontal sinus

См. также в других словарях:

• 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

• sinus — sinuslike, adj. /suy neuhs/, n., pl. sinuses. 1. a curve; bend. 2. a curving part or recess. 3. Anat. a. any of various cavities, recesses, or passages, as a hollow in a bone, or a reservoir or channel for venous blood. b. one of the hollow… …   Universalium

• 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

• sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or …   Medical dictionary

• 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

• Sinus venosus — This article is on an embryological structure. For the heart defect of the same name, please see atrial septal defect. Infobox Embryology Name = Sinus venosus Latin = GraySubject = 138 GrayPage = 528 Caption = Interior of dorsal half of heart… …   Wikipedia

• Maxillary sinus — Outline of bones of face, showing position of air sinuses. Latin sinus maxilliaris Gray s …   Wikipedia

• Ethmoid sinus — Bone: Ethmoid sinus Paranasal sinuses …   Wikipedia

• Mastoid part of the temporal bone — Bone: Mastoid portion of the temporal bone Side view of head, showing surface relations of bones …   Wikipedia

• Nasal surface of the body of the maxilla — Bone: Nasal surface of the body of the maxilla Left maxilla. Nasal surface. Latin facies nasalis corporis maxillae Gray s …   Wikipedia

• Ramus of the mandible — Bone: Ramus of the mandible Mandible. Outer surface. Side view …   Wikipedia