V2EX filopodium

Filopodium

Definition / 定义

filopodium(复数 filopodia)丝状伪足;细胞表面伸出的细长、指状突起,主要由肌动蛋白丝(actin filaments)支撑,常用于环境探测、细胞迁移、黏附、细胞间信号交流等。(在神经发育中也常指生长锥上的细丝突起。)

Pronunciation / 发音

/flpodim/

Examples / 例句

The cell extended a filopodium to explore the surface.
细胞伸出一条丝状伪足来探测表面。

During development, filopodia help guide growing nerve cells by sensing chemical signals in their environment.
在发育过程中,丝状伪足通过感知环境中的化学信号来帮助引导正在生长的神经细胞。

Etymology / 词源

来自现代科学拉丁语:**filo-**(源自拉丁语 filum,意为“线、细丝”)+ -podium(源自希腊语 *pous/pod-*,意为“脚”),字面意思是“像线一样的脚”,形象描述这种细长突起用于“触探/移动”的功能。

Related Words / 相关词

Literary Works / 文学与著作例证

  • Alberts 等《Molecular Biology of the Cell》(《细胞的分子生物学》):在细胞骨架与细胞运动章节中讨论细胞突起与肌动蛋白结构,常出现 filopodium/filopodia
  • Cooper & Hausman《The Cell: A Molecular Approach》(《细胞:分子方法》):介绍细胞迁移与膜突起类型时使用该术语。
  • Bray《Cell Movements: From Molecules to Motility》:细胞运动经典教材,涉及丝状伪足在运动与探测中的作用。
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