Both bones have an alveolus, or socket, for each tooth.

它们都富有凹槽即牙槽，以放置牙齿。

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

在每个分支的末端都有一个叫做肺泡的小气囊。

But some of these invaders may get past the mucociliary escalator into the lungs, where they meet the alveoli.

但是有些入侵者有可能通过粘膜纤毛自动扶梯并进入到肺里，并接触到肺泡。

As alveoli are responsible for gas exchange, this is not good news.

由于肺泡负责气交换，这可不是好。

The first part is the root, and it sits within the alveolus.

第一部分是牙根，位于牙槽内。

In healthy babies, the alveoli are like perfectly inflated mini-balloons.

在健康的内，肺泡就像一个个充满了气的微型气球一样。

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的微小结构破裂。

Men have some breast tissue as well, but they lack milk secreting alveoli.

男性也有乳房组织，但他们没有分泌乳汁的腺泡。

In the lungs, the capillary lines up alongside a small sack of air called an alveolus.

在肺里，毛细血管包绕着半球状囊泡，即肺泡。

These outpouchings are called alveoli, and there are about 500 million of them within the lungs.

这些突起称为肺泡，在肺部大约有5亿个肺泡。

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

移出异物后，肺泡中的空气周围围绕的大多是I型肺泡细胞。

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，叫做肺泡的微小气囊中，肺泡是将二氧化碳转化为氧气的部位。

If enough fluid fills some of these capillaries in the lungs, they can rupture, leaking blood into the alveoli.

一旦足量积液充斥着肺部毛细血管，可能会出现破溃，血液渗出进入肺泡。

When the lungs are affected, the toxins damage the alveolar-capillary membranes, which can result in bleeding within the alveoli.

肺部受累时，细菌毒素会破坏肺泡毛细血管内膜，从而导致肺泡内出血。

The image below shows a single alveolus and a pulmonary capillary.

一下这幅图展示了一个肺泡和一个肺毛细血管。

Both of your lungs contain about 700 million alveoli, which together provide an amazing 75 square meters of moist membrane surface area.

你的两个肺包含大约 7 亿肺泡，它们共同提供了惊人的 75 平方米的湿膜表面积。

The respiratory zone includes the respiratory bronchioles and the alveoli.

呼吸区包括呼吸性细支气管和肺泡。

In bronchopneumonia, the infection can be throughout the lungs involving the bronchioles as well as the alveoli.

在支气管肺炎中，感染可以遍及肺部，包括细支气管和肺泡。

Oxygen and carbon dioxide move across the respiratory membrane, which includes the alveolus and pulmonary capillary.

氧气和二氧化碳穿过呼吸膜（包括肺泡和肺毛细血管）。

Around 24 weeks in, the lung structures that swap out oxygen and carbon dioxide, called alveoli, start developing.

大约 24 周后，交换氧气和二氧化碳的肺部结构（称为肺泡）开始发育。