单词 | fenestra |
释义 | fenestran. A small hole or transparent spot resembling a hole. 1. Anatomy. A small hole or opening in a bone, etc.; esp. applied to the two openings on the inner wall of the tympanum of the ear, fenestra ovalis, fenestra rotunda (see quot. 1884). ΘΚΠ the world > life > the body > structural parts > bone or bones > parts of bones > [noun] > opening or passage Haversian canal1838 fenestra1844 Haversian system1845 osteon1928 the world > life > the body > sense organ > hearing organ > parts of hearing organ > [noun] > other cavities window1615 vestibulum1704 vestibule1728 navicular fossa1802 saccule1836 utricle1837 membranous vestibule1842 fenestra1844 utriculus1847 1844 R. D. Hoblyn Dict. Terms Med. & Collateral Sci. (ed. 2) 121/1 Fenestra ovalis and rotunda..the oval and round apertures of the internal ear. 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 193 The alisphenoids..form the anterior half of the fenestra ovalis. 1870 G. Rolleston Forms Animal Life 7 An interorbital fenestra. 1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 400 An oval fenestra, covered only by a thin and transparent portion of the integument. 1884 T. Barr Man. Dis. Ear iii. i. 260 The fenestra ovalis or opening into the vestibule and the fenestra rotunda or opening into the cochlea. The fenestra ovalis is in the upper and back part of the inner wall..at the bottom of a recess..The fenestra rotunda..is also situated at the bottom of a recess in the bone. 2. Zoology. (See quot. 1881.) ΚΠ 1881 S. H. Vines in Nature No. 620. 463 Fenestræ..openings [in the zoarium]..connected by the general substance of the zoarium. 3. Botany. See quot. 1828. Also ‘an opening through a membrane’ ( Treasury Bot. 1866). ΚΠ 1828 J. Stark Elements Nat. Hist. II. 459 The part at which the seed has separated from the ovary is indicated by a small mark or scar, called fenestra. 4. Surgery. a. A perforation in a surgical instrument other than in the handle. In quot. 1963 fenestra has apparently been taken as a plural form. ΘΚΠ the world > health and disease > healing > medical appliances or equipment > surgical instruments > [noun] > hole in fenestra1874 1874 R. J. Dunglison Dunglison's Med. Lexicon (rev. ed.) (at cited word) The term fenestra is also applied to the open space in the blades of a forceps. 1899 C. Truax Mech. Surgery xxiii. 479 The sac wall, when held in this forceps, will protrude through the fenestræ of the blades, whose sharply serrated edges insure a firm grasp. 1963 Mitchell-Heggs & Drew Instruments of Surg. i. 46 Charnley's dissecting forceps is designed in addition to grip suture material firmly when tying knots... The suture is trapped in the fenestrum by the block projection on the opposing jaw. b. An opening in a dressing, plaster, etc., for access or the relief of pressure. ΘΚΠ the world > health and disease > healing > medical appliances or equipment > equipment for treating wound or ulcer > [noun] > opening in dressing fenestra1876 1876 C. H. Leonard Man. Bandaging x. 116 It would be well to coat the margins of the fenestrae..with parrafin [sic], so as to prevent the absorbtion [sic] of the fluids by the dressing. 1914 E. L. Eliason Pract. Bandaging v. 109 The gauze dressing over the wound should be the size and shape of the desired fenestra or window. c. A hole cut by a surgeon in any structure of the body. ΘΚΠ the world > health and disease > healing > medical treatment > surgery > incision > [noun] > opening up > openings made surgically issuea1450 fistula1728 counter-opening1739 fenestration1935 stoma1937 fenestra1941 1941 Surg., Gynecol. & Obstetr. 72 472 This surgically made fenestra remains open. 1958 F. B. Korkis Rec. Adv. in Oto-laryngol. (ed. 3) iv. 59 Closure of the newly made fenestra..is not as frequent as it was in the early days of the operation. This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2022). < |
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