V2EX growth cone

Growth Cone

释义 Definition

生长锥(神经生物学):发育中的神经元轴突或树突末端的“锥形/扇形”结构,能够感知周围环境中的化学与物理信号,并通过伸展、收缩来引导神经突起生长与导航,帮助建立正确的神经连接。(该词在其他语境中较少使用,最常见指神经发育中的结构。)

发音 Pronunciation

/roθ kon/

例句 Examples

The growth cone guides the axon to its target.
生长锥引导轴突到达它的目标位置。

In response to chemical cues, the growth cone reorganizes its cytoskeleton and changes direction as it migrates through developing tissue.
在化学信号的作用下,生长锥会重排细胞骨架,并在穿行于发育中的组织时改变前进方向。

词源 Etymology

growth cone”由 growth(生长) + cone(圆锥)构成,是一种形态学命名:早期显微观察发现神经突起末端常呈锥状/扇状扩展。growth 可追溯到古英语 grōwan(生长、成长);cone 来自古英语 cōn(圆锥形物)。合在一起直观描述“用于生长与探路的锥状末端”。

相关词 Related Words

文学与重要著作 Literary Works

  • Santiago Ramón y CajalHistology of the Nervous System of Man and Vertebrates(关于神经发育与末端结构的经典描述与图示传统,与“生长锥”概念密切相关)
  • Eric R. Kandel 等Principles of Neural Science(系统讲解生长锥、轴突导向与神经回路建立)
  • Bruce Alberts 等Molecular Biology of the Cell(细胞骨架动态与细胞迁移/突起生长机制中常提及生长锥)
  • Dale Purves 等Neuroscience(基础神经科学教材中对生长锥与导向信号的常规介绍)
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