So, this is where I tell you that you're lucky to have a sympathetic nervous system.

所以，这就是我告诉你——你有交感神经系统很幸运。

Adderall also causes the release of norepinephrine, which activates the sympathetic nervous system, initiating your fight-or-flight response.

Adderall 还会导致去甲肾上腺素的释放，从而激活交感神经系统，引发你的“战或逃”反应。

One of them is dedicated to amping you up and preparing you for activity — that's your sympathetic nervous system.

其中一个专门为你兴奋，让你为活动做好准备——那是你的交感神经系统。

Stress activates your sympathetic nervous system, which increases your heart rate and moderates your blood pressure using a hormone called cortisol.

压力会激活交感神经系统，利用一种叫皮质醇的激素增加心率及缓和血压。

Because by learning about your sympathetic nervous system, you come to understand one of the key players in the physiology of stress.

因为通过了解你的交感神经系统，你会开始理解压力生理学中的关键角色之一。

Alright, as a quick recap, neuroblastoma is a condition where neural crest cells of the developing sympathetic nervous system and adrenal medulla do not differentiate normally.

好！简单回顾一下：神经母细胞瘤是由于发育中的交感神经链和肾上腺髓质的神经嵴细胞没有正常分化。

Neurotransmitters then alert the sympathetic nervous system of the perceived threat.

然后神经递质提醒交感神经系统感知到的威胁。

We have parasympathetic nervous system and our sympathetic nervous system.

我们有副交感神经系统和交感神经系统。

Together, the sympathetic chain and adrenal medulla form the sympathetic nervous system, connecting the brain and central nervous system to various organs including the heart and blood vessels.

交感神经链和肾上腺髓质一起组成了交感神经系统，将大脑和中枢神经系统与各器官连接起来，包括心脏和血管。

It's part of our sympathetic nervous system, so we'll breathe.

它是我们交感神经系统的一部分， 所以我们会呼吸。

T3 increases cardiac output, stimulates bone reabsorption thinning out the bones and then activates the sympathetic nervous system, the part of the nervous system responsible for our fight-or-flight response.

T3还会引起心输出量增高，刺激骨骼再吸收，引起骨骼变薄并激活交感神经系统；交感神经系统主管着“战或逃”反应。

When the amygdala perceives danger, it stimulates the sympathetic nervous system, which triggers the release of adrenaline.

当杏仁核感知到危险时， 它会刺激交感神经系统，从而触发肾上腺素的释放。

Now, other drugs can stimulate the sympathetic nervous system, responsible for your body’s fight or flight response.

现在，其他药物可以刺激交感神经系统， 负责您身体的战斗或逃跑反应。

But peeing also triggers the sympathetic nervous system, which is involved in other involuntary processes like the fight-or-flight response.

但小便也会触发交感神经系统， 该系统参与其他非自愿过程，如战斗或逃跑反应。

Your blushing reflex is controlled by something called your sympathetic nervous system, which is basically the system that takes over when you panic and happens without you ever choosing to blush.

你的脸红反射是由一种叫做交感神经系统的东西控制的，这个系统当你惊恐的时候会发生作用，你不需要主动去做，脸就会变红。

That's your sympathetic nervous system, otherwise known as your fight-or-flight system, kicking in to offer you the energy you need to respond.

那是你的交感神经系统， 也就是你的战或逃系统，它会为你提供反应所需的能量。

For now you learned that your sympathetic nervous system controls your body's stress response and how the signals in your sympathetic nervous system travel to an effector, using the neurotransmitters acetylcholine in the ganglion and norepinephrine at the effector.

现在你知道了你的交感神经系统控制你身体的压力反应，以及交感神经系统中的信号如何传递到效应物，使用神经节中的神经递质乙酰胆碱和效应物处的去甲肾上腺素。