手机APP下载

您现在的位置: 首页 > 英语听力 > 国外媒体资讯 > 时差N小时 > 正文

时差N小时:耳石(上)

来源:可可英语 编辑:beck   可可英语APP下载 |  可可官方微信:ikekenet
  


扫描二维码进行跟读打分训练

Ear rocks, also known as “otoliths,” are tiny pebbles of calcium carbonate in our inner ear that help keep us balanced. They’re located deep inside the inner ear in a small pouch called a utricle. When we move our heads, the tiny rocks move around and bump into nerve cells. These nerve cells send signals to our brain that tell it which way the head is oriented. It’s one way we know up from down. But problems with ear rocks can be a cause of chronic dizziness or vertigo. Occasionally the little pebbles fall out of the utricle and can get into another part of the inner ear canals. When this happens, the brain senses that we’re moving much more than we really are, resulting in sensations of unsteadiness or dizziness.

耳岩,也被称为“耳石”,是内耳中碳酸钙形成的晶体,它帮助我们保持平衡。它们位于内耳深处一个叫作“胞囊”的地方。当我们移动头部时,晶体也会四处移动并接触到神经细胞。这些神经细胞将信号发送到我们的大脑,告诉大脑头面向的方向。这是一种让我们知道上下的方式。但耳石有问题的话,它会导致慢性头晕或眩晕。有时候,小晶体会从“胞囊”中掉出来,并进入到内耳道中。当这种情况发生时,大脑感到我们移动的距离要比实际移动的距离多很多,这会造成不稳或头晕的感觉。

重点单词   查看全部解释    
dizziness ['dizinis]

想一想再看

n. 头昏眼花,眩晕

 
occasionally [ə'keiʒənəli]

想一想再看

adv. 偶尔地

 
calcium ['kælsiəm]

想一想再看

n. 钙

联想记忆
vertigo ['və:tigəu]

想一想再看

n. 眩晕

联想记忆
chronic ['krɔnik]

想一想再看

adj. 长期的,慢性的,惯常的

联想记忆

发布评论我来说2句

    最新文章

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。