V2EX baroreceptor

Baroreceptor

定义 Definition

压力感受器:分布在颈动脉窦主动脉弓等部位的感觉神经末梢,能感知血管壁因血压变化产生的牵张(压力变化),并通过压力感受器反射(baroreflex)调节心率与血管张力,从而帮助维持血压稳定。(在一些语境中也可泛指“感受压力/牵张的受体”。)

例句 Examples

Baroreceptors help keep your blood pressure stable.
压力感受器帮助维持你的血压稳定。

When blood pressure rises suddenly, baroreceptors in the carotid sinus send signals to the brainstem, which reduces heart rate and relaxes blood vessels to restore balance.
当血压突然升高时,颈动脉窦的压力感受器会向脑干发送信号,脑干随之降低心率并使血管舒张,以恢复平衡。

发音 Pronunciation

/brorsptr/

词源 Etymology

baro- 来自希腊语 baros,意为“重量、压力”;receptor 源自拉丁语 recipere(接收)。合起来字面意思是“接收压力(变化)的受体”。

相关词 Related Words

文学与名著用例 Literary Works

  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔:医学生理学》)讨论压力感受器及其在血压快速调节中的作用。
  • Ganong’s Review of Medical Physiology(《甘农医学生理学》)讲解压力感受器反射通路与临床相关性。
  • Principles of Neural Science(Kandel 等,《神经科学原理》)在自主神经与内脏感觉章节中涉及压力感受器传入与中枢整合。
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