brain and nerves

大脑是一个复杂的器官。

The ___brain is a complex organ.

你记忆力很好。

You have a good ___memory.

我不记得他的名字了。

I can't ___remember his name.

电视开着，我无法专心做作业。

I can't ___concentrate on my homework with the TV on.

一小时后，我的注意力开始分散。

After an hour, my ___attention started to wander.

我学习时容易被手机分散注意力。

I get ___distracted by my phone when I study.

他仍有意识，但伤势严重。

He's still ___conscious but he's very badly injured.

他们发现那位徒步者躺在小径上，失去了知觉。

They found the hiker lying ___unconscious on the trail.

神经细胞传递电脉冲。

___Nerve cells transmit electrical impulses.

在寒冷的户外站了太久，我的手指都冻得没知觉了。

After standing outside in the cold for too long, my fingers became completely ___numb.

当强光照到眼睛时，瞳孔收缩是一种自然反射。

Pupil contraction is a natural ___reflex when bright light hits the eyes.

我完全没有疼痛的感觉。

I had no ___sensation of pain whatsoever.

我有点头疼，需要休息一下。

I have a slight ___headache and need to rest for a while.

她感到有点头晕。

She felt a little bit ___dizzy.

请不要忘记你的家庭作业。

Please don't ___forget your homework.

医生解释说，神经系统控制着我们所有的感觉和运动。

The doctor explained that the ___nervous ___system controls all our senses and movements.

洗完澡后，我手臂上有一阵轻微的刺痛感。

After the shower, I felt a slight ___tingling sensation on my arm.