(n.) A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water.
(n.) A canal or passage; as, the aqueduct of Sylvius, a channel connecting the third and fourth ventricles of the brain.
Example Sentences:
(1) In addition to the aqueduct other associated inner ear anomalies have been identified in 60% of this population including: enlarged vestibule (14); enlarged vestibule and lateral semicircular canal (7); enlarged vestibule and hypoplastic cochlea (4); and hypoplastic cochlea (4).
(2) When histamine (5 micrograms) was injected into three different levels of the ventricular system, the magnitude and duration of the resulting increases in plasma epinephrine and glucose were in the following rank order: the third ventricle greater than aqueduct much greater than fourth ventricle.
(3) The majority of the responsive neurons were located in regions surrounding the aqueduct and the medial part of PAG.
(4) When outcome was examined in patients who were stuporous or comatose on admission, a significant increase in septal shift was found among patients with a poor outcome, but there was no significant relationship between outcome and degree of pineal or aqueductal shift.
(5) This is the first case of a fulminant phase of mumps ventriculitis leading to aqueductal stenosis, which has been treated using a ventriculoscope for the first time.
(6) A series of 55 cases is described in which hydrocephalus associated with non-neoplastic narrowing of the Sylvian aqueduct produced symptoms for the first time in adult life.
(7) With systole there is downward (caudal) flow of CSF in the aqueduct of Sylvius, the foramen of Magendie, the basal cisterns and the dorsal and ventral subarachnoid spaces while during diastole, upward (cranial) flow of CSF in these same structures is seen.
(8) A patent cochlear aqueduct indicated on computed tomography scan was found and repaired through a posterior cranial fossa approach.
(9) Rats from the H-Tx strain develop hydrocephalus through a developmental obstruction of the cerebral aqueduct.
(10) In group A, kaolin was present in the fourth ventricle and Sylvian aqueduct.
(11) SE images obtained with gradient moment nulling did not allow confident distinction between patent and obstructed aqueducts.
(12) The signal intensity of the cerebrospinal fluid (CSF) in the cerebral aqueduct and lateral ventricles on magnetic resonance (MR) images was evaluated in 16 healthy individuals and in 32 patients with various forms of hydrocephalus (20 with chronic normal pressure hydrocephalus [NPH], seven with acute communicating hydrocephalus, and five with hydrocephalus ex vacuo [atrophy]).
(13) Tentorial herniation secondary to supratentorial mass lesions will cause aqueductal compression and raised intraventricular pressure.
(14) However, these cytoplasmic edema of the ependymal and glial cells totally subsided by day 30 postinjection, leaving an obliterated aqueduct with a few remnants of ependymal cells without reactive gliosis.
(15) The effect of intracranial pressure on cerebrospinal fluid formation has been studied in cats by ventricular perfusion with the aqueduct of Sylvius blocked (isolated ventricular perfusion).
(16) The disappearance of patency in the cochlear aqueduct is a progressive phenomenon reflecting the biological process of aging in the organism.
(17) The results suggest that under physiological conditions the CSF also flows through the cochleae aqueduct and the protein concentration in the Scala tympani decreases especially in the basal winding.
(18) We demonstrate that the stenosis of the aqueduct is a secondary phenomenon, not causally related to the pathogenesis of hydrocephalus, and discuss the significance of this finding to human aqueduct stenosis.
(19) In the other 71%, the pars rugosa in the vestibular aqueduct was surrounded by dura more commonly than normal.
(20) In this paper we attempted MR visualization of the vestibular aqueduct (VA) with a surface coil.
Ditch
Definition:
(n.) A trench made in the earth by digging, particularly a trench for draining wet land, for guarding or fencing inclosures, or for preventing an approach to a town or fortress. In the latter sense, it is called also a moat or a fosse.
(n.) Any long, narrow receptacle for water on the surface of the earth.
(v. t.) To dig a ditch or ditches in; to drain by a ditch or ditches; as, to ditch moist land.
(v. t.) To surround with a ditch.
(v. t.) To throw into a ditch; as, the engine was ditched and turned on its side.
(v. i.) To dig a ditch or ditches.
Example Sentences:
(1) This year's IPO frenzy has shown further signs of fading, as yet another company ditched plans to list its shares on the London stock exchange.
(2) But the last people you'd rely on are those who dug the ditch and shoved you in – particularly when they're still building and still shoving.
(3) Plans for the pipeline to come onshore in Brindisi were ditched following local opposition.
(4) But in a last-ditch effort, his lawyers lodged an appeal for clemency on Monday morning.
(5) Now he must go | Momodou Musa Touray Read more As midday and 4pm deadlines to go passed on Friday, two regional leaders arrived in the capital, Banjul, in a last-ditch diplomatic effort to persuade him to step down.
(6) In Barcelona, where last-ditch negotiations are taking place, it became clear today the best hope for Copenhagen is a "politically binding" agreement, which rich countries hope will have all the key elements of the final deal, including specific targets and timetables for greenhouse gas emissions cuts and money for poor countries to cope with climate change.
(7) In a last-ditch attempt to overturn the award of the west coast rail franchise to FirstGroup, Virgin Trains co-owner Sir Richard Branson has offered to run the service "for free" to allow time for parliamentary scrutiny of the decision.
(8) Time to scrap all honours everywhere, including UK.” Australians had their chance to ditch the monarchy in 1999.
(9) By removing the safeguards on [the total number of] hours [a trainee medic can be told to work], doctors will be working unsafe hours, leading to poor patient care.” One source involved in helping to formulate Hunt’s new offer said it represented a serious move to break the impasse over the pay and conditions of NHS medics and is his “last-ditch attempt to resolve the junior doctors dispute” before the ballot produces a widely expected mandate for action.
(10) phi PS5, a double-stranded DNA bacteriophage of Pseudomonas stutzeri JM604 that adsorbs specifically to the outer-membrane protein NosA, was isolated from stagnant irrigation ditch water.
(11) We will have another financial shock – it’s inevitable.” Gary Greenwood, analyst at Shore Capital, described the results as “dismal” and noted the bank was ditching targets previously set to measure returns to shareholders.
(12) Geoff Reid Bradford • Is the Jeremy Hunt who stated that “We need to have an honest discussion about the purpose of A&E departments” ( Hunt ditches target as A&E crisis deepens , 10 January) the same Jeremy Hunt who took his own child to A&E with a minor illness because he didn’t want to wait for a GP appointment?
(13) The chancellor stressed that Britain’s relationship with the EU would remain unchanged for the time being – and ditched the idea, launched alongside his predecessor Alistair Darling during the campaign – that an emergency budget would be necessary within weeks, as Brexit slams the brakes on the economy.
(14) 5) Playing dirty helps win the day Three days before the vote, a panicking no campaign organised a last-ditch rally at the Place du Canada in Montreal.
(15) The head of the World Trade Organisation (WTO) yesterday urged diplomats to stop bickering about a mini package of liberalisation designed to boost global commerce and warned of serious damage to the 20-year-old institution if last-ditch talks failed.
(16) A humiliated Trierweiler was publicly ditched by Hollande in a terse 18-word statement announcing that he was “putting an end” to their “shared life”.
(17) He took Jessica's mobile out of her pocket; he carried their bodies down the stairs and, after checking no one was around, bundled them into the cramped boot of his car, bending their legs to fit them in; he collected petrol and bin bags (to protect his feet and thus conceal evidence); he drove to Lakenheath and found a lonely track; he got out where the vegetation grew thickly and he rolled the two girls down into the ditch; he climbed into the ditch and cut off their clothing - their red football shirts and their tracksuit trousers, their knickers, Holly's black bra which she and her mother had bought the day before - and then he poured petrol over their bodies and threw on a match.
(18) On information known publicly, one Tamil man was detained when he came to Australia because he was a lawyer for the LTTE’s civil administration, another because he dug ditches on LTTE orders for civilian Tamils to shelter in during air raids by government aircraft.
(19) The railway staff left to pick up the pieces are being set up as scapegoats with ludicrous claims about Spanish practices and out-of-control pay, but our members have already been paying with their jobs as the privateers ditch frontline staff to maintain profits.
(20) The US secretary of state was due to hold late-night talks with his Iranian counterpart, Mohammad Javad Zarif, in a last-ditch attempt to break the deadlock on unresolved issues.