When this fluid builds up, it makes gas exchange inside the alveoli much more difficult.

当这些液体积聚起来后，就会使肺泡内空气转换更加困难。

At the end of each branch is a tiny air sac called an alveolus.

在每个分支末端都有一个叫做肺泡小气囊。

Emphysema is when the tiny structures in your lungs called alveoli, break down.

肺气肿是指肺中被称为肺泡微小结构破裂。

Initially, doctors had no way to alter the stretchability or squeeziness of their patients' air sacs.

最初，医有办法改变病人肺泡拉伸性或挤压力度。

Free from particles, the inhaled air is now in the alveolus surrounded by mostly type I pneumocytes.

移出异物后，肺泡中空气周绕大多是I型肺泡细胞。

And if there's one thing your body hates, it's a bunch of exotic material spicing up your sensitive alveoli!

如果有你身体讨厌东西进来话，就是一堆有东西让你肺泡激动起来了！

That problem happens deep in the lungs, in tiny air sacs called alveoli, which exchange carbon dioxide for oxygen.

这个问题出现在肺部深处，叫做肺泡微小气囊中，肺泡是将二氧化碳转化为氧气部位。

In atypical or interstitial pneumonia, the infection is mainly just outside the alveoli in the interstitium.

在非典型肺炎和间质性肺炎中，感染主要发在间质肺泡外。

The alveolar walls are made of extremely thin, flat cells that are surrounded by capillaries.

肺泡壁由极薄且扁平细胞构成，这些细胞被毛细血管所环绕。

This blood absorbs oxygen from the inflated alveoli and leaves behind carbon dioxide.

这种血液从膨胀肺泡中吸收氧气并留下二氧化碳。

They reach your alveoli, little air sacs where the breathing  happens.

它们到达你肺泡，即进行呼吸小气囊。

And eventually to these things which are called alveoli.

最终到达这些被称为肺泡结构。

On the other side of the pneumocytes are endothelial cells that line the capillary walls, which is what holds the blood.

而肺泡细胞另一边就是毛细血管壁内皮细胞，毛细血管携带便是我们亲爱血液。

This large number of alveoli greatly increases the surface area for gas exchange.

大量肺泡大大增加了气体交换表面积。

In emphysema, repeated exposure to smoke or irritating particles breaks the inner walls of the alveoli.

在肺气肿中，反复接触烟雾或刺激性颗粒会破坏肺泡内壁。

It then fills the alveoli, tiny air sacs that enable the exchange of oxygen and carbon dioxide between the lungs and blood.

然后填充肺泡，微小空气囊能使氧气和二氧化碳在肺部和血液之间交换。

The alveoli are tiny air sacs that look like tiny clumps of grapes, that are wrapped up in a net of capillaries.

肺泡是微小气囊，看起来像小丛葡萄，包裹于毛细血管网中。

The respiratory system takes in oxygen from the air and expels carbon dioxide and water vapor.

空气进入口和鼻，穿过喉咙和气管。气管发出左右分支分别进入两肺，之后以超过20次分支形成大量肺泡。

Now, the total surface area of alveoli is about 140 square meters or 1,500 square feet.

现在，肺泡总表面积约为140平方米或1500平方英尺。

And inside of our alveoli, we have this very thin liquid layer and this creates a liquid air interface.

在我们肺泡内部，存在着一层非常薄液体层，它形成了液体与空气界面。