What's the difference between bridge and isthmus?

Bridge


Definition:

  • (n.) 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.
  • (n.) 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.
  • (n.) 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.
  • (n.) A device to measure the resistance of a wire or other conductor forming part of an electric circuit.
  • (n.) A low wall or vertical partition in the fire chamber of a furnace, for deflecting flame, etc.; -- usually called a bridge wall.
  • (v. t.) To build a bridge or bridges on or over; as, to bridge a river.
  • (v. t.) To open or make a passage, as by a bridge.
  • (v. t.) To find a way of getting over, as a difficulty; -- generally with over.

Example Sentences:

  • (1) The role of Ca2+ in cell agglutination may be either to activate the cell-surface dextran receptor or to form specific intercellular Ca2+ bridges.
  • (2) Data from cases with myocardial bridges show that both fatty streaks and raised lesions are seldom observed in the region distal to myocardial bridge.
  • (3) which suggest that ~60-90% of the cross-bridges attached in rigor are attached in relaxed fibers at an ionic strength of 20 mM and ~2-10% of this number of cross-bridges are attached in a relaxed fiber at an ionic strength of 170 mM.
  • (4) Terry Waite Chair, Benedict Birnberg Deputy chair, Antonio Ferrara CEO The Prisons Video Trust • If I want to build a bridge, I call in a firm of civil engineers who specialise in bridge-building.
  • (5) Brief digestion at neutral pH without reduction produced a molecule in which the Fab and Fc fragments were still linked by a pair of labile disulphide bridges, and the Fc fragment released by cleaving these bonds, called 1Fc fragment, contained a portion of the ;hinge' region including an interchain disulphide bridge.
  • (6) Acute coronary angiography showed myocardial bridging and total occlusion of the left anterior descending artery in the middle one-third of its course.
  • (7) These force-generators are identified with projections (cross-bridges) on the thick filament, each consisting of part of a myosin molecule.
  • (8) Segmental function was diminished an average of 67.8% in "noses" and 46.6% in "bridges".
  • (9) Gibbs was sent off in the first half at Stamford Bridge for handball, despite replays clearly showing it was his team-mate Alex Oxlade-Chamberlain who illegally deflected an Eden Hazard shot.
  • (10) Close van der Waals' contacts between the Cys22-Cys63 and Cys51-Cys75 disulfide bridges and the central hydrophobic core composed of the Trp25, Leu46, His48a and Trp62 side-chains are among the distinguishing features of the kringle 2 fold.
  • (11) The reactivity of the three disulphide bridges of insulin towards sodium sulphite was studied by amperometric titration of the liberated thiol groups.
  • (12) The cartilage of the concha is a valuable substitute of the bridge and the posterior wall of the external auditory conduct.
  • (13) It is shown from an analysis of the transient force responses observed after sudden changes in muscle length applied both at full and reduced overlap and during the rising phase of short tetani that these responses can be explained on the basis of varying numbers of cross bridges attached at the time of the length step.
  • (14) A two-lane, 400m bridge – funded by Jica, Japan's aid agency – coupled with simplified procedures agreed by Zambia and Zimbabwe have speeded up processing time.
  • (15) The dynamic properties of cross-bridge movement were investigated in glycerol-treated muscle fibers under various conditions by analyzing tension responses to two types of length change.
  • (16) The first problem facing Calderdale is sheep-rustling Happy Valley – filmed around Hebden Bridge, with its beautiful stone houses straight off the pages of the Guardian’s Lets Move To – may be filled with rolling hills and verdant pastures, but the reality of rural issues are harsh.
  • (17) It is suggested that a general manner of folding may be a common feature of the heterogeneous population of kappa-chains: one bridge which folds an invariable stretch of the chain, another bridge which folds a stretch that varies from protein to protein, and a bridge at the C-terminus which is the interchain link.
  • (18) 1-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-3-(2-chloroethyl)-3- nitrosourea hydrochloride (ACNU) causes chloroethylation of DNA strand followed by cross linking through an ethylene bridge.
  • (19) Optimal staining of antigen rich tissue, such as frozen sections, with the peroxidase antiperoxidase method required low antiserum concentrations apparently to minimize the binding of both antigen-binding fragments of the bridging antibody to the tissue bound antiserum.
  • (20) The results provided information on the energetics of actin-myosin-ligand states that occur in the portion of the cross-bridge cycle where MgATP binds to myosin.

Isthmus


Definition:

  • (n.) A neck or narrow slip of land by which two continents are connected, or by which a peninsula is united to the mainland; as, the Isthmus of Panama; the Isthmus of Suez, etc.

Example Sentences:

  • (1) To explore relations between preload, afterload, and stroke volume (SV) in the fetal left ventricle, we instrumented 126-129 days gestation fetal lambs with ascending aortic electromagnetic flow transducers, vascular catheters, and inflatable occluders around the aortic isthmus (n = 8) or descending aorta (n = 7).
  • (2) Resection of the peritracheal segments of the thyroid gland with the isthmus extirpation was performed.
  • (3) Detection of PGE2-specific binding in the oviductal isthmus on Day 2 and Day 5 indicates that the oviduct is responsive to PGE2 when it is capable of transporting equine embryos.
  • (4) In control tissues there was a significant variation in vascularity according to geographic location in the following order of magnitude: fundus greater than corpus greater than cornua greater than isthmus.
  • (5) Inaccurate IFS diagnosis of depth of myometrial invasion can occur when tumor involves the uterine isthmus or cornua and when tumor invades areas of adenomyosis.
  • (6) Marginal overhang was the prevailing type of failure (17%), recurrent caries occurred at 12% of the restorations, unacceptable proximal contact at 10%, unacceptable marginal adaptation at 8% and isthmus fractures at 2%.
  • (7) Toral neurons project to the secondary visceral nucleus of the isthmus and to the central and anterior thalamic nuclei of the dorsal thalamus.
  • (8) However, of the four children with a residual gradient greater than 20 mm Hg, two were the youngest in the study, and in two the aorta was inadvertently dilated with a balloon 4 to 5 mm smaller than the isthmus diameter.
  • (9) Ventilatory conditions, or the existence of soft tissue density, were evaluated by HRCT at such locations as the supratubal recess, mesotympanum, anterior and posterior parts of the tympanic isthmus, epitympanum, and mastoid antrum.
  • (10) Ganglion cells innervating the posterior canal were located in the caudal part of the inferior ganglion, while those cells innervating the saccule were located in the rostral part of the inferior ganglion, scattered in the superior ganglion, and concentrated at the junction (isthmus) between the two.
  • (11) Examination of the characteristics of the EP reveals that there is a significantly higher proportion located in the isthmus in the group of patients without an IUD, whereas the fimbrial location is more frequent among patients with an IUD.
  • (12) In addition, labelled cells were found in the torus semicircularis, in and around the nucleus isthmus pars parvocellularis.
  • (13) Ova were consistently recovered from the ampulla 24 hours after ovulation, from both the ampulla and isthmus at 48 hours, and from the uterus 72 hours after ovulation.
  • (14) Some metric parameters (height and width, sizes of the isthmus the an angle between the corns) are given with the purpose of greater precision of roentgenological interpretation.
  • (15) A biopsy was taken from the mucosa of the intramural part, isthmus, and ampulla in each tube.
  • (16) End diastolic flow velocity just beneath the aortic isthmus was measured within 72 hours of cardiac catheterisation by pulsed Doppler echocardiography in 30 controls and 61 patients with aortic regurgitation.
  • (17) Microsurgical anastomosis restored electrical continuity between anastomosed segments in both the ampulla and isthmus.
  • (18) One of them was located at mid-descending thoracic aorta and another was aortic isthmus.
  • (19) Coitus induced ovulation produced a characteristic oviductal motility pattern consisting of (i) initial relaxation of both isthmus and ampulla (4-12 h) followed by (ii) increased isthmic motility in the face of a continually relaxed ampulla (36-48 h), and finally phase (iii) leading to restitution of both ampullary and isthmic motility to the base-line at 72-96 h. Estimation of ova positions indicated the presence of fertilized eggs in the ampulla and ampullo-isthmic junction at 48 h and the ova could come to the end of the isthmic segment only at 72 h or after.
  • (20) By their nature, intracoronal restorations provide resistance to nonaxial dislodging forces, and features such as the occlusal isthmus and proximal boxes and grooves will obviously also increase this resistance.