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。

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

由于肺负责气体交换，这可不是好消息。

And pneumonia, often triggered by bacterial or viral infections, attacks the alveoli themselves.

肺炎——常常由细菌或病毒感染引发——会攻击肺本身。

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。

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

在每分支的末端都有一叫做肺的小气囊。

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

肺气肿是肺中被称为肺的微小结构破裂。

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

在健康的宝宝体内，肺就像一满了气的微型气球一样。

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

如果有你身体讨厌的东西进来的话，就是一堆有毒的东西让你的肺激动起来了！

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

这些突起称为肺，在肺部大约有5亿肺。

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。

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

一旦足量积液斥着肺部毛细血管，可能会出现破溃，血液渗出进入肺。

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

第一部分是牙根，位于牙槽骨内。

And with each breath in, oxygen enters the alveoli and freely diffuses into the blood.

而每次呼吸，氧气都会进入肺，通过自由扩散进入血液。

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

这问题出现在肺部深处，叫做肺的微小气囊中，肺是将二氧化碳转化为氧气的部位。

The body also tries to force the fluid out of the alveoli through coughing.

身体也试图通过咳嗽，使那些液体脱离肺。

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，细菌毒素会破坏肺毛细血管内膜，从而导致肺内出血。

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，即肺。

This allows air to be drawn in, inflating the alveoli — millions of small sacs inside our lungs.

于是空气被吸进来，满肺——肺是我们肺部成千上万的小囊。

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

你的两肺包含大约 7 亿肺，它们共同提供了惊人的 75 平方米的湿膜表面积。

They represent tiny air-sacs or alveoli getting filled with fluid, and turning a shade of grey on CT scans.

这代表着肺中满了液体，从而在CT显像中呈现灰色阴影。