V2EX action potential

Action Potential

定义 Definition

动作电位:神经元或肌肉细胞膜电位在短时间内发生的快速、可传播的变化,是神经信号传递的基本形式。(常见于神经科学与生理学语境)

发音 Pronunciation (IPA)

/kn ptnl/

例句 Examples

The action potential travels along the neuron.
动作电位沿着神经元传播。

When the stimulus reaches the threshold, an action potential is generated, leading to neurotransmitter release at the synapse.
当刺激达到阈值时,会产生动作电位,并在突触处引发神经递质释放。

词源 Etymology

action 源自拉丁语 actio(“行动、行为”),potential 源自拉丁语 potentia(“力量、潜能”)。合起来表示一种“发挥作用的电学潜能变化”。该术语在现代生理学中用于描述神经与肌肉细胞的电信号“事件”。

相关词 Related Words

文学与重要著作 Literary Works

  • Principles of Neural Science(Eric R. Kandel 等):以动作电位为核心概念讲解神经信号传导。
  • From Neuron to Brain(Nicholls 等):系统介绍动作电位的产生机制与离子通道基础。
  • Guyton and Hall Textbook of Medical Physiology(Guyton & Hall):在神经与肌肉生理章节中频繁使用该术语。
  • The Principles of Physiology(Ernest H. Starling):早期生理学体系中讨论电活动与兴奋性现象(相关概念框架)。
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