V2EX optic nerve

Optic Nerve

定义 Definition

optic nerve视神经。连接眼球视网膜与大脑的神经(第二对脑神经),负责把视觉信息传递到大脑的视觉中枢。日常与医学语境中最常指这一解剖结构(在特定语境下也可引申指“与视觉传导相关的神经通路”,但核心义为视神经)。

发音 Pronunciation (IPA)

/ptk nv/

例句 Examples

The doctor checked my optic nerve during the eye exam.
医生在眼科检查时查看了我的视神经。

Damage to the optic nerve can reduce vision even if the eye itself looks normal.
即使眼球本身看起来正常,视神经受损也可能导致视力下降。

词源 Etymology

optic 来自希腊语 optikós(“与看有关的、视觉的”),与 *ops/opt-*(“眼、看”)同源;nerve 来自拉丁语 nervus(“筋、神经”)。合起来直译为“视觉的神经”,即“视神经”。

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》):在颅神经与眼部解剖章节中系统描述 optic nerve 的结构与走行。
  • Principles of Neural Science(Kandel 等,《神经科学原理》):在视觉通路章节讨论视网膜optic nerve视皮层的信息传递。
  • Oliver Sacks, The Man Who Mistook His Wife for a Hat(《错把妻子当帽子的人》):在部分神经心理学病例叙述中涉及视觉系统与可能的视神经/视觉通路问题。
  • Clinical Ophthalmology: A Systematic Approach(《临床眼科学:系统方法》):在青光眼、视神经病变等章节频繁出现 optic nerve(常见于临床评估与影像检查语境)。
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