V2EX nociceptor

Nociceptor

释义 Definition

伤害感受器 / 痛觉感受器:一种位于皮肤、肌肉、关节或内脏等组织中的感觉神经末梢或受体,能检测可能造成组织损伤的刺激(如强烈机械压力、极端温度、化学物质),并把“疼痛/伤害”的信号传向中枢神经系统。日常学习中常把它理解为“负责触发疼痛信号的传感器”。

发音 Pronunciation (IPA)

/nossptr/
/nssptr/

词源 Etymology

来自拉丁语词根 nocēre(“伤害、使受伤”)与 receptor(“受体、接受者”)的组合,字面意思是“接受伤害信号的受体”。该词常见于生理学、神经科学与疼痛研究语境。

例句 Examples

Nociceptors help your body detect harmful heat.
伤害感受器帮助你的身体感知有害的高温。

When tissue is inflamed, nociceptors can become more sensitive, causing ordinary touch to feel painful.
当组织发生炎症时,伤害感受器可能变得更敏感,从而让普通触碰也感觉疼痛。

相关词 Related Words

文学与著作 Literary Works / Notable Works

  • Principles of Neural Science(《神经科学原理》,Eric R. Kandel 等):在疼痛通路与感觉系统章节中讨论 nociceptor 与疼痛编码。
  • Textbook of Pain(《疼痛学教科书》,Wall & Melzack 主编):系统介绍伤害感受器类型、敏化与慢性疼痛机制。
  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔医学生理学》):在感觉生理与疼痛章节中解释 nociceptors 与疼痛传导。
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