V2EX acetylcholine

Acetylcholine

定义 Definition

Acetylcholine(乙酰胆碱)是一种重要的神经递质,存在于人体的中枢神经系统和外周神经系统中,负责在神经细胞之间传递信号,参与肌肉收缩、记忆、学习等多种生理功能。

发音 Pronunciation

/sitalkolin/

例句 Examples

Acetylcholine plays a key role in transmitting signals between nerve cells.
乙酰胆碱在神经细胞之间的信号传递中起着关键作用。

Researchers found that a decline in acetylcholine levels in the brain is closely associated with the memory loss observed in Alzheimer's disease.
研究人员发现,大脑中乙酰胆碱水平的下降与阿尔茨海默病中观察到的记忆丧失密切相关。

词源 Etymology

该词由两个部分组成:acetyl 来自拉丁语 acetum(醋),指乙酰基,一种常见的化学基团;choline 来自希腊语 cholē(胆汁),指胆碱,一种存在于生物体内的有机化合物。1914年,英国生理学家亨利戴尔(Henry Dale)首次确认了乙酰胆碱的生理作用,后来奥托勒维(Otto Loewi)通过著名的蛙心实验证明了它作为神经递质的功能,两人因此共同获得1936年诺贝尔生理学或医学奖。

相关词汇 Related Words

文学与学术引用 Literary & Academic References

  • 《神经科学原理》(Principles of Neural Science,Eric Kandel 等著)该书详细讨论了乙酰胆碱在突触传递中的核心作用,是神经科学领域的经典教材。
  • 《美丽新世界》(Brave New World,Aldous Huxley 著)赫胥黎在作品中涉及神经化学物质对人类行为的控制,其中神经递质的概念与乙酰胆碱的功能密切相关。
  • 《自私的基因》(The Selfish Gene,Richard Dawkins 著)书中在讨论生物体的信号传递机制时涉及了神经递质的作用。
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