V2EX sodium channel

Sodium Channel

释义 Definition

钠通道:细胞膜上的一种蛋白质“通路”,允许钠离子(Na)选择性地进出细胞。它在神经冲动(动作电位)的产生与传导、以及肌肉收缩等过程中非常关键。(常见类型包括电压门控钠通道;此外在其他语境中也可泛指与钠离子通透相关的通道。)

发音 Pronunciation (IPA)

/sodim tnl/

词源 Etymology

sodium 来自“soda(苏打)”相关词源,指化学元素channel 原意为“水道、通道”,引申为“允许通过的通路”。合起来 sodium channel 直译就是“让钠通过的通道”,在生物学中专指膜蛋白形成的离子通道。

例句 Examples

The sodium channel opens and lets Na enter the cell.
钠通道打开,让 Na 进入细胞。

A mutation in a sodium channel can change how nerves send pain signals.
钠通道的突变可能改变神经传递疼痛信号的方式。

相关词 Related Words

文学与经典著作 Literary Works

  • Hodgkin & Huxley (1952), A quantitative description of membrane current and its application to conduction and excitation in nerve(经典论文:奠定电压门控离子通道与动作电位机制的基础)
  • Bertil Hille, Ion Channels of Excitable Membranes(离子通道领域权威教材,系统讨论钠通道等)
  • Kandel et al., Principles of Neural Science(神经科学经典教材,讲解动作电位与钠通道作用)
  • Guyton and Hall, Textbook of Medical Physiology(生理学经典教材,涉及神经与肌肉兴奋中的钠通道)
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