V2EX ciliary muscle

Ciliary Muscle

释义 Definition

睫状肌:位于眼球内、环绕晶状体的平滑肌。它通过改变晶状体的形状来实现调节(accommodation),帮助眼睛在看远与看近之间对焦。(该词也常出现在眼科与解剖学语境中。)

发音 Pronunciation

/sliri msl/

例句 Examples

The ciliary muscle helps your eyes focus on near objects.
睫状肌帮助你的眼睛对近处物体进行对焦。

When the ciliary muscle contracts, the lens becomes rounder, improving near vision but sometimes contributing to eye strain after long reading.
当睫状肌收缩时,晶状体会变得更圆,从而增强近距离视力,但长时间阅读后也可能导致眼疲劳。

词源 Etymology

ciliary 来自拉丁语 cilium(“眼睑边缘的毛、睫毛”),引申为“与睫状体/睫毛状结构有关的”;muscle 源自拉丁语 musculus(“小老鼠”),古人用来比喻肌肉隆起时的形状。合起来 ciliary muscle 指“与睫状体相关、负责调节晶状体的肌肉”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Gray’s Anatomy(《格雷氏解剖学》)
  • Adler’s Physiology of the Eye(《阿德勒眼生理学》)
  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔医学生理学》)
  • Clinical Ophthalmology: A Systematic Approach(《临床眼科学:系统方法》)
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