V2EX sympathetic nervous system

Sympathetic Nervous System

定义 Definition

sympathetic nervous system(交感神经系统)是自主神经系统的一部分,负责调控人体的"战斗或逃跑"反应。当人面临压力、危险或紧急情况时,交感神经系统会加速心跳、扩张瞳孔、抑制消化等,使身体进入高度警觉状态。它与副交感神经系统(parasympathetic nervous system)相对,后者负责"休息与消化"功能。

发音 Pronunciation

/smpθtk nrvs sstm/

例句 Examples

When you encounter a dangerous situation, your sympathetic nervous system activates immediately to prepare your body for action.
当你遇到危险情况时,你的交感神经系统会立即激活,让身体做好行动准备。

Research has shown that chronic stress can lead to prolonged activation of the sympathetic nervous system, which may contribute to cardiovascular disease and other health problems over time.
研究表明,长期压力会导致交感神经系统持续激活,久而久之可能引发心血管疾病和其他健康问题。

词源 Etymology

该短语由三个词组成。sympathetic 源自希腊语 sympathetikos,由 syn-(一起)和 pathos(感受、感情)组合而成,原意为"共同感受的"。在解剖学中,这个词被用来描述这一神经系统,因为早期解剖学家认为它与身体各器官之间存在"共感"关系。nervous 源自拉丁语 nervosus,意为"与神经有关的"。system 源自希腊语 systema,意为"有组织的整体"。该术语由丹麦解剖学家 Jacob Winslow 在18世纪正式命名。

相关词汇 Related Words

文学与学术引用 Literary & Academic References

  • The Body Keeps the Score Bessel van der Kolk:书中详细讨论了交感神经系统在创伤反应中的作用,解释了身体如何记住压力和恐惧。
  • Why Zebras Don't Get Ulcers Robert Sapolsky:这本经典科普著作深入浅出地讲解了交感神经系统在压力反应中的机制,以及长期压力对健康的影响。
  • Gray's Anatomy:作为经典解剖学教科书,其中对交感神经系统的结构和功能有系统而权威的描述。
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