Let's say you develop heart disease. Your doctor can order up new heart cells.

我们假设说你患上了心脏疾病，你的医生可以订购新的心脏细胞。

The shock is meant to surprise the heart cells back into a normal pumping rhythm.

电击是为了让心脏细胞恢复正常的泵血节律。

Disconnected from its blood supply, the heart's cells start taking on damage from lack of oxygen.

与它的血液供应断开，心脏细胞开始由于缺氧，受到损伤。

OK, so picture all your individual heart cells as a bunch of musicians in an orchestra.

好，那么把你所有的单个心脏细胞想象成管弦乐队中的一群音乐家。

Over time, through this epigenetic reprogramming, some cells develop into heart cells, and others into liver cells.

一段时间后，通过表观遗传学的重新运作，一些细胞成长为心脏细胞，其他的成为肝脏细胞。

Huang and his colleagues wanted to examine the number of chromosomes contained in heart cells across the animal kingdom.

黄果及其同事想检查整个动物界心脏细胞中的染色体数量。

Deepak Srivastava of the University of California, San Francisco, meanwhile, has shown how to convert connective tissue into heart cells.

加州大学旧金山分校（University of California， San Francisco）的迪帕克•司里瓦斯德瓦（Srivastava）则发表了将结缔组织转化为心肌细胞的过程。

Basically, when heart cells die in a myocardial infarction, it leads to massive inflammation that also involves the serous pericardium.

心肌梗死导致心肌细胞死亡，引发累及浆膜心包的强烈炎症反应。

Should an embryo cell become a blood cell? A heart cell? A brain cell?

胚胎细胞应该变成血细胞吗？心脏细胞？脑细胞？

Human brain and heart cells have some cellular machinery to use fructose, but not nearly as much as naked mole rats.

人的大脑和心细胞有着一些消耗果糖的细胞机制，但是跟裸鼹鼠就差得很远了。

They’re still not completely sure why heart cells would start spewing out minerals, but it’s probably an accident.

他们仍然不完全确定为什么心脏细胞会开始喷出矿物质，但这可能是个意外。

For example, drops in oxygen levels can trigger anginal chest pain, and can irritate heart cells leading to an arrhythmia—an irregular heartbeat.

比如，缺氧会引起心绞痛，还会刺激心肌细胞，导致心率不齐，即不规律的心脏跳动。

But in order to understand what's actually going on during cardiac arrest, we have to understand some basics about your heart cells.

但是为了理解心脏骤停时到底发生了什么，我们必须了解一些关于心脏细胞的基础知识。

They can become anything they want: a brain cell, a heart cell, a bone cell, a lung cell, any adult cell type.

一个脑细胞，一个心脏细胞，一个骨细胞，一个肺细胞，任何一种成熟细胞。

And there's one more thing you need to know about your heart's cells: Some of them can generate their own electricity.

关于心脏细胞，还有一件事你需要知道：有些细胞可以自己发电。

These electrodes are used to make 12 leads, each of which illustrates the movement of positive charge on the outside of heart cells.

这些电极可以用作记录12导联心电图，每个导联都能显示出心脏细胞外的正电荷活动。

But the lion's share of our heart cells are actually polyploid, meaning two or more copies from mom, two or more copies from dad.

但我们心脏细胞的大部分是多倍体，也就是说从父亲或母亲处遗传到两套或两套以上的染色体。

But the lion's share of our heart cells are polyploid, meaning two or more copies from mom, two or more copies from dad.

但是我们心脏细胞的最大份额是多倍体，这意味着妈妈有两个或更多拷贝， 爸爸有两个或更多拷贝。

Different concentrations of the drug made the heart cells beat at different frequencies and produce shifts in the structural colour of the gel.

不同浓度的药物使心脏细胞以不同的频率跳动，并使凝胶的结构颜色发生变化。

Or, if you completely block one of those coronary arteries with plaque, or maybe a blood clot, a whole bunch of heart cells quickly starve to death.

或者，如果你的冠状动脉被斑块，或者血块完全堵塞，一大堆心脏细胞很快就会饿死。