| 词汇 | action-potential |
| 释义 | BETA action potentialcollocation in Englishmeanings of actionand potentialThese words are often used together. Click on the links below to explore the meanings. action noun uk /ˈæk.ʃən/ us /ˈæk.ʃən/ the process of doing something, especially when dealing with a problem ... See more at action potential noun[ U ] uk /pəˈten.ʃəl/ us /poʊˈten.ʃəl/ someone's or something's ability to develop, achieve, ... See more at potential Examples of action potentialaction potential The actionpotential in the presynaptic cell forces the vesicles to empty neurotransmitters into the synaptic cleft. For example, a somatic actionpotential was able to actively invade the entire dendritic tree. Depolarisation of the egg triggers an actionpotential. This results in the firing of the egg's actionpotential, followed by partial repolarisation. Depolarizing current injection could identify two functional classes: amacrine cells that fired a single actionpotential versus those cells that fired repetitively. Electrophysiologic effects of acute myocardial ischemia: a theoretical study of altered cell excitability and actionpotential duration. The lab interface collected standard pulses triggered by each actionpotential and assembled them into conventional averaged response histograms. Bottom panel: time-course of the changes in actionpotential latency induced by oligodendrocyte depolarization. Here, v (cm/sec) and 1(cm) are characteristic actionpotential speed and fall-off distance in the density of corticocortical fibers, respectively. Ionic mechanisms underlying human atrial actionpotential properties: insights from a mathematical model. It prolongs the nerve actionpotential, allowing greater influx of calcium and thus release of acetylcholine. None of these cells generated an actionpotential. Disturbance of the modulatory effect of oligodendrocytes on actionpotential conduction might be involved in these brain dysfunctions. The contribution of actionpotential sources to extracranial fields appears to be small due to multi-directional axon geometry and asynchronous timing of firings. However, a super-threshold stimulus generates a large-amplitude tra jectory, the actionpotential, before the membrane potential returns to its resting value. 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. |
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