| 词汇 | example_english_atrioventricular-node |
| 释义 | atrioventricular nodecollocation in Englishmeanings of atrioventricularand nodeThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with node. atrioventricular adjective uk /ˌeɪ.tri.əʊ.venˈtrɪk.jə.lər/ us /ˌeɪ.tri.oʊ.venˈtrɪk.jə.lɚ/ relating to the connection between the atrium (= upper space) and ventricle (= lower space) of ... See more at atrioventricular node noun[C] uk /nəʊd/ us /noʊd/ biology a place where a leaf and stem join on ... See more at node Examples of atrioventricular nodeThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. This accessory atrioventricular connection extending across the atrioventricularnode was found in an infant dying suddenly and unexpectedly. Histological examination showed a normal atrioventricularnode and bundle, adjacent to the aneurysm. In these patients, fast retrograde conduction occurred through both the accessory pathway and atrioventricularnode, obscuring differentiation of the two pathways. Congenitally corrected transposition with normally positioned atria, straddling mitral valve, and isolated posterior atrioventricularnode and bundle. In atrioventricular septal defects, the atrioventricularnode is posteriorly displaced and may be at risk of injury during placement of both atrial and ventricular patches. Diagnoses included accessory pathways (66 patients), ectopic atrial foci (four patients), and atrioventricularnode reentrant tachycardia (four patients). Normally the atrioventricularnode slows conduction velocity to allow for coordinated atrial and ventricular systole, optimizing cardiac output. Atrial stimulation revealed normal atrioventricular conduction across the anterior node and abnormal conduction through posterior atrioventricularnode, suggesting disease in the posterior connection. In the preterm hearts, however, this strong expression was mainly restricted to the atrioventricularnode and the penetrating atrioventricular bundle. The effective refractory period of the atrioventricularnode was 210 msec. It is possible that this syndrome can simply be produced by accelerated conduction through the atrioventricularnode. It has a number of actions including that of a positive inotrope and an ability to block conduction through the atrioventricularnode. What is persistent advanced block at the atrioventricularnode? Subsequent histological sectioning (right) showed hemorrhage in the atrioventricularnode. When the tricuspid valve straddles and overrides the ventricular septum, the atrioventricularnode is formed at the point where the septum meets the atrioventricular junction. Suturing is performed with 5/0 monofilament, and should be stopped 1 cm away from the anatomical landmarks of the location of die atrioventricularnode. All three of these patients had pathways lateral to the atrioventricularnode (left lateral in two, posterior left in one). This impairment of atrioventricular conduction seems to be due to mechanical desturbance of the atrioventricularnode, which is compressed between the umbrellas. Subsequent development leaves the initial ringforming the atrioventricularnode, bundle and bundle branches, while the right junctional segment becomes dispersed as the atrioventricular ring tissues (c). The connecting atrioventricularnode is displaced to the right of the cardiac crux to the point of intersection between the ventricular septum and the right atrioventricular junction. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of atrioventricular Go to the definition of node See other collocations with node |
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