air sinus

air sinus n an air-containing cavity (as a paranasal sinus and esp. a maxillary sinus) in bone

* * *

an air-containing space within the substance of a bone.

Medical dictionary. 2011.

Look at other dictionaries:

  • maxillary air sinus — n MAXILLARY SINUS …   Medical dictionary

  • Sinus (anatomy) — Sinus is Latin for bay , pocket , curve , or bosom . In anatomy, the term is used in various contexts. A sinus is a sack or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. In common usage,… …   Wikipedia

  • Sinus — may refer to:In anatomy, where a sinus is a sac or cavity in any organ or tissue: *Sinus (anatomy), description of the general term *Anal sinuses, the furrows which separate the columns in the rectum *Paranasal sinuses, air cavities in the… …   Wikipedia

  • Air hunger — is the sensation of the urge to breathe. It is usually caused by the detection of high levels of carbon dioxide in the blood by sensors in the carotid sinus and is one of the body s homeostatic mechanisms to ensure proper oxygenation. Natural… …   Wikipedia

  • Sinus de la face — ● Sinus de la face cavité remplie d air, creusée dans les os de la tête et s ouvrant dans les fosses nasales …   Encyclopédie Universelle

  • sinus — [sī′nəs] n. [L, a bend, curve, fold] 1. a bend or curve 2. any cavity or hollow formed by a bending or curving 3. Anat. Zool. any of various cavities, hollows, or passages; esp., a) any of the air cavities in the skull opening into the nasal… …   English World dictionary

  • Sinus paranasal — Pour les articles homonymes, voir Sinus. Sinus paranasal Sinus paranasaux …   Wikipédia en Français

  • 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

  • sinus squeeze — ▪ pathology also called  Aerosinusitis, or Barosinusitis,         pain, inflammation, and possible bleeding of the membranes lining the sinus cavities in the head, caused by a difference between the pressure inside the sinuses and that outside.… …   Universalium

  • 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

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