单词	action potential
释义	action potential noun : a momentary reversal in electrical potential across a plasma membrane (as of a neuron or muscle fiber) that occurs when a cell has been activated by a stimulus Example Sentences Recent Examples on the Web That’s a language that neurons understand because [the flood of sodium ions] depolarizes a neuron and sends a signal called an action potential, which can then talk to the next neuron. Tanya Lewis, Scientific American, 8 Oct. 2021 The patients’ action potential duration shortened under the stress. Grace Leslie, Scientific American, 18 Sep. 2021 Huxley’s Nobel Prize winning work to understand the action potential - the basis for how neurons communicate with each other via discrete electrical impulses. Gabriel A. Silva, Forbes, 27 May 2021 Each neuron in the brain receives somewhere in the range of tens of thousands to hundreds of thousands of action potential electrical signals from other neurons that connect into it. Gabriel A. Silva, Forbes, 19 Apr. 2021 What’s the consequence of all the work required to generate an action potential in the postsynaptic neuron? Gabriel A. Silva, Forbes, 19 Apr. 2021 That may or may not result in a spike, or action potential, going out on the neuron’s axon to the dendrites of post-synaptic neurons. Quanta Magazine, 18 Feb. 2021 This was noteworthy because conventional action potentials are usually caused by sodium and potassium ions. Quanta Magazine, 14 Jan. 2020 Neurons firing action potentials that affect the downstream cells they are wired to (via synapses) are one type of mechanism, as are electronic circuits, made of transistors, capacitances, resistances and wires. Christof Koch, Scientific American, 1 Dec. 2019 See More Word History First Known Use 1913, in the meaning defined above Medical Definition action potential noun : a momentary reversal in the potential difference across a plasma membrane (as of a nerve cell or muscle fiber) that occurs when a cell has been activated by a stimulus called also spike potential compare resting potential see afterpotential, generator potential, prepotential
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