Fenestra

Fenestra

Fenestræ (singular: fenestra) are small pores in epithelial cells to allow for rapid exchange of molecules between blood vessels and surrounding tissue. These pores can enlarge and contract at the action of various stimuli such as noradrenaline.

In anatomy, the term is used to refer to natural (as opposed to traumatic) openings in the skull or other bones.Fenestræ is the Latin plural for windows.

ee also

*Temporal fenestra


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  • FENESTRA — ex Graeco φαινίςτρα, quod a verbo φανίζω; antiquis Fenestra et Festra, ex Graeco φαίςτρα itidem, quod a φαιςτὸς, perspicuus, lucidus: illuminandae domui inservit. Quo fine decorabantur olim ex speculari lapide, aut vitro in tenues laminas fuso,… …   Hofmann J. Lexicon universale

  • fenestra — (del lat. «fenestra»; ant.) f. *Ventana. * * * fenestra. (Del lat. fenestra). f. desus. ventana …   Enciclopedia Universal

  • Fenestra — (lat.), 1) Fenster; daher Fenestragium, im Mittelalter eine Abgabe für das Recht, durch das Fenster verkaufen zu dürfen. 2) (Anat.), Loch im Ohr; Fenestra rotunda u. Fenestra semiovalis, s.u. Ohr; 3) (Bot.), Samennarbe, s. Hilum …   Pierer's Universal-Lexikon

  • fenestra — FENÉSTRA s.f. (anat.) Deschidere în peretele medial al urechii interne. [< lat. fenestra – fereastră]. Trimis de LauraGellner, 23.03.2005. Sursa: DN …   Dicționar Român

  • fenestra — (Del lat. fenestra). f. desus. ventana …   Diccionario de la lengua española

  • Fenestra — Fe*nes tra, n.; pl. {Fenestr[ae]}. [L., a window.] (Anat.) A small opening; esp., one of the apertures, closed by membranes, between the tympanum and internal ear. [1913 Webster] …   The Collaborative International Dictionary of English

  • Fenestra — (lat., »Fenster«), ein Teil des Ohrs, s. Ohr …   Meyers Großes Konversations-Lexikon

  • fenestra — v. finestra …   Enciclopedia Italiana

  • fenestra — [fi nes′trə] n. pl. fenestrae [fi nes′trē΄] [ModL < L, window, prob. < Etr * fnestra] 1. a small opening, as any of the covered oval openings in the inner wall of the middle ear 2. a small, transparent spot, as in the wings of some insects… …   English World dictionary

  • fenestra — 1. [TA] An anatomic aperture, often closed by a membrane. 2. An opening left in a plaster of Paris cast or other form of fixed dressing in order to permit access to a wound or inspection of the …   Medical dictionary

  • fenestra — n. (in anatomy) an opening resembling a window. The fenestra ovalis (fenestra vestibuli) – the oval window – is the opening between the middle ear and the vestibule of the inner ear. It is closed by a membrane to which the stapes is attached. The …   The new mediacal dictionary

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