V2EX voltage-gated

Voltage-gated

释义 Definition

电压门控的;电压依赖的:指某种通道(尤其是细胞膜上的离子通道)会根据膜电位变化而开启或关闭,例如电压门控钠通道、钙通道等。(也常见写法:voltage-gated ion channel

发音 Pronunciation (IPA)

/voltd etd/ (美式)
/vltd etd/ (英式)

例句 Examples

Voltage-gated channels open when the membrane voltage changes.
电压门控通道会在膜电位改变时打开。

During an action potential, voltage-gated sodium channels activate rapidly, causing a quick depolarization of the neuron.
在动作电位过程中,电压门控钠通道会迅速激活,使神经元快速去极化。

词源 Etymology

voltage(电压)+ gated(“有门的/受门控的”,源自 gate“门”) 组合而成。这里的 gated 是比喻用法,表示通道像“门”一样受某种信号控制;当“电压”达到条件时,这扇“门”就会开或关。该术语主要用于生理学与神经科学语境。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Principles of Neural Science(Kandel 等):在讲解动作电位与突触传递时频繁使用 voltage-gated(如电压门控 Na/K 通道)。
  • Ion Channels of Excitable Membranes(Bertil Hille):以离子通道为核心主题,系统讨论电压门控通道的结构与动力学。
  • Molecular Biology of the Cell(Alberts 等):在细胞膜运输与电生理相关章节中出现 voltage-gated ion channels
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