| MEDEX, Medex | extension of physician [Fr. medicin extension] |
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| Br | breech; bregma; bridge; bromine; bronchitis; brown; Brucella; brucellosis |
| AGE | acrylamide gel; acute gastroenteritis; advanced glycation end product; agarose gel electrophoresis; ... |
| ERE | external rotation in extension |
| ext | extension; extensive; extensor; exterior; external; extract; extreme, extremity |
| MB | Myocardial Bridge |
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| ECE | Extracapsular extension |
| F/E | Flexion-extension |
| KE | Knee extension |
| PEP | Primer extension preamplification |
| extension bridge | A fixed partial bridge denture in which the pontic is retained only on one side by an abutment tooth. Synonym: extension bridge. (05 Mar 2000) |
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| Buck's extension | Apparatus for applying longitudinal skin traction on the leg through contact between the skin and adhesive tape; friction between the tape and skin permits application of force, which is applied through a cord over a pulley, suspending a weight; elevation of the foot of the bed allows the body to act as a counterweight. Synonym: Buck's traction. (05 Mar 2000) |
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| paraplegia in extension | Paralysis of the legs, maintained in an extended position by hypertonic extensor muscles. (05 Mar 2000) |
| ridge extension | An intraoral surgical operation for deepening the labial, buccal, and/or lingual sulci; it is performed to increase the intraoral height of the alveolar ridge in order to assist denture retention. (05 Mar 2000) |
| crossed extension reflex | Extension of the contralateral hind limb when the paw of an animal is painfully stimulated or the central cut end of an afferent nerve, e.g., the peroneal, is stimulated; sometimes occurs in humans upon tapping the skin. (05 Mar 2000) |
| primer extension | A technique for determining the 5'-untranslated region of a specific mRNA molecule. Uses an oligonucleotide complementary to the known RNA sequence as a primer for cDNA synthesis via reverse transcriptase. (05 Mar 2000) |
| skeletal extension | Traction pull on a bone structure mediated through pin or wire inserted into the bone to reduce a fracture of long bones. Synonym: skeletal extension. (05 Mar 2000) |
| nail extension | An obsolete method of extension, by a weight on a nail or pin in the distal fragment of a fracture. (05 Mar 2000) |
| extension | 1. <orthopaedics> The movement by which the two elements of any jointed part are drawn away from each other. 2. <anatomy> A movement which brings the members of a limb into or toward a straight relation. Origin: L. Extensio (18 Nov 1997) |
| extension form | The extension of the cavity preparation outline form to include areas of incipient carious lesions; this extension provides a dental restoration with margins that are self-cleansing or easily cleaned. (05 Mar 2000) |
| arteriolovenular bridge | The largest capillary connecting arteriole to venule. (05 Mar 2000) |
| bridge | 1. To build a bridge or bridges on or over; as, to bridge a river. "Their simple engineering bridged with felled trees the streams which could not be forded." (Palfrey) 2. To open or make a passage, as by a bridge. "Xerxes . . . Over Hellespont Bridging his way, Europe with Asia joined." (Milton) 3. To find a way of getting over, as a difficulty; generally with over. Origin: Bridged; Bridging. 1. A structure, usually of wood, stone, brick, or iron, erected over a river or other water course, or over a chasm, railroad, etc, to make a passageway from one bank to the other. 2. Anything supported at the ends, which serves to keep some other thing from resting upon the object spanned, as in engraving, watchmaking, etc, or which forms a platform or staging over which something passes or is conveyed. 3. The small arch or bar at right angles to the strings of a violin, guitar, etc, serving of raise them and transmit their vibrations to the body of the instrument. 4. <physics> A device to measure the resistance of a wire or other conductor forming part of an electric circuit. 5. A low wall or vertical partition in the fire chamber of a furnace, for deflecting flame, etc.; usually called a bridge wall. Aqueduct bridge. See Aqueduct. Asses' bridge, Bascule bridge, Bateau bridge. See Ass, Bascule, Bateau. Bridge of a steamer, a narrow platform across the deck, above the rail, for the convenience of the officer in charge of the ship; in paddlewheel vessels it connects the paddle boxes. Bridge of the nose, the upper, bony part of the nose. Cantalever bridge. See Cantalever. Draw bridge. See Drawbridge. Flying bridge, a temporary bridge suspended or floating, as for the passage of armies; also, a floating structure connected by a cable with an anchor or pier up stream, and made to pass from bank to bank by the action of the current or other means. Girder bridge or Truss bridge, a bridge formed by girders, or by trusses resting upon abutments or piers. Lattice bridge, a bridge formed by lattice girders. Pontoon bridge, Ponton bridge. See Pontoon. Skew bridge, a bridge built obliquely from bank to bank, as sometimes required in railway engineering. Suspension bridge. See Suspension. Trestle bridge, a bridge formed of a series of short, simple girders resting on trestles. Tubular bridge, a bridge in the form of a hollow trunk or rectangular tube, with cellular walls made of iron plates riveted together, as the Britannia bridge over the Menai Strait, and the Victoria bridge at Montreal. <physics> Wheatstone's bridge, a device for the measurement of resistances, so called because the balance between the resistances to be measured is indicated by the absence of a current in a certain wire forming a bridge or connection between two points of the apparatus; invented by Sir Charles Wheatstone. Origin: OE. Brig, brigge, brug, brugge, AS. Brycg, bricg; akin to Fries. Bregge, D. Brug, OHG. Bruccu, G. Brucke, Icel. Bryggja pier, bridge, Sw. Brygga, Dan. Brygge, and prob. Icel. Br bridge, Sw. & Dan. Bro bridge, pavement, and possibly to E. Brow. Source: Websters Dictionary (01 Mar 1998) |
| bridge corpuscle | <cell biology> Specialised cell junction characteristic of epithelia into which intermediate filaments (tonofilaments of cytokeratin) are inserted. The gap between plasma membranes is of the order of 25-30nm and the intercellular space has a medial band of electron dense material. Desmosomes are particularly conspicuous in tissues such as skin that have to withstand mechanical stress. Origin: Gr. Soma = body (18 Nov 1997) |
| cantilever bridge | A fixed partial bridge denture in which the pontic is retained only on one side by an abutment tooth. Synonym: extension bridge. (05 Mar 2000) |
| Gaskell's bridge | The bundle of modified cardiac muscle fibres that begins at the atrioventricular node as the trunk of the atrioventricular bundle and passes through the right atrioventricular fibrous ring to the membranous part of the interventricular septum where the trunk divides into two branches, the right crus of the atrioventricular bundle and the left crus of the atrioventricular bundle; the two crura ramify in the subendocardium of their respective ventricles. Synonym: fasciculus atrioventricularis, atrioventricular band, Gaskell's bridge, His' band, His' bundle, bundle of His, Keith's bundle, Kent's bundle, Kent-His bundle, ventriculonector. (05 Mar 2000) |
| removable bridge | A partial denture which supplies teeth and associated structures on a partially edentulous jaw, and which can be readily removed from the mouth. Synonym: removable bridge. (05 Mar 2000) |
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