Air is conducted through smaller and smaller bronchioles for about 15-20 generations, and collectively they're known as conducting bronchioles, receiving O2 from bronchial arteries.

空经过越来越小的细支传导大约15-20级；称为传导性细支，从支动脉中获取O2。

Davison said HMPV gave her a serious bout of bronchitis.

戴维森说 HMPV 让她患上了严重的支炎。

From there, the trachea splits in two, forming the right and left main bronchi. You can imagine these inner lung parts as sort of an upside-down tree.

从那里，一分为二，形成左右的主支。你可以把这些肺内部分想象成一棵倒置的树。

Early on, minutes after the exposure to the allergen, smooth muscle around the bronchioles start to spasms and there is increased mucus secretion.

早期，在接触过敏原的几分钟后，细支周围的平滑肌开始痉挛，粘液分泌增多。

The actions of these cohorts eventually led to severe pulmonary haemorrhage and necrosis – or tissue death – within the bronchi.

这种团伙行动最终导致了严重的肺血和支内的坏死——或组织死亡。

Sometimes a severe bout of bronchiolitis may be due to more than one of these invaders attacking at the same time.

有时严重的细支炎发作可能因为感染了不止一种病原体。

After the first three generations of bronchi, however, the airways become more narrow, called bronchioles - 'little bronchi', and these can stay open without the need for cartilage.

然而，前三级支的下级：道变得更狭窄，称为细支；这些可以保持开放而不需要软骨。

It is an inflammatory condition of the larynx, trachea and bronchi; more common than acute epiglottitis.

这一种喉、支粘膜的急性感染性疾病；比急性会厌炎更常见。

So if we take a look at the lungs, you've got the trachea which branches off into the right and left bronchi and then continues to branch into thousands of bronchioles.

所以，如果我看一下肺：这，会分支到右和左支，然后继续延伸到成千上万的细支。

Now, once air makes it's way into the larynx, it then continues down as the trachea or the windpipe, which splits into the two mainstem bronchi.

而一旦空进入咽喉，接下来就，延伸为两侧的支。

Chronic bacterial infection and inflammation can lead to bronchiectasis, which is airway wall damage causing permanent dilation of the bronchi.

长期细菌感染和炎症可以导致支炎，即道壁被破坏导致支的永久性扩张。

Occasionally in the sputum there might be curschmann spirals, which are spiral shaped mucus plugs or basically elongated mucous casts from small bronchi of people with bronchial asthma.

偶尔在痰中可能会有库什曼螺旋晶体，也就螺旋形的粘液栓，或本质上支哮喘患者的小支塑成的细长粘液。

Smooth muscle along the trachea and the first few branches of bronchi have beta 2 adrenergic receptors.

和初级支分支的平滑肌上，都有β2受体。

These conducting bronchioles receive oxygenated blood from the bronchial arteries of the systemic circulation.

这些传导性细支接受来自体循环的支动脉血液；动脉血含氧量丰富。

That helps relax the muscles around the bronchi to make it easier to breathe.

这有助于放松支周围的肌肉，使呼吸更加顺畅。

As education — of a certain sort — the story had probably a certain value, though he could never see it. One seldom can see much education in the buck of a broncho; even less in the kick of a mule.

作为某种教育——这个故事可能具有一定的价值，尽他永远看不到。很少有人能在支的雄鹿身上看到太多的教育；更不用说被骡子踢了。

And scientists believe that the bacteria B. bronchiseptica, which infected hominids 2.5 million years ago, may have evolved into the bacteria that is now responsible for whooping cough.

科学家认为，250万年前感染原始人类的支败血杆菌可能已经进化成了现在导致百日咳的细菌。

In this episode, we look at new research on mucoactive therapy for bronchiectasis, aspirin use in anticoagulated patients with coronary disease, and sotatercept for early pulmonary arterial hypertension.

在本期节目中，我探讨了关于支扩张症的黏液溶解治疗新研究、冠心病抗凝患者使用阿司匹林的情况，以及早期肺动脉高压使用索他塞普的新进展。

Augustine, where, out of regard for the supposed susceptibility of Mr. Welland's bronchial tubes, they always spent the latter part of the winter.

在奥古斯丁那里， 于对威兰先生支的假定敏感性的考虑，他总在冬天的后半段度过。

Tiny unicorns goring his bronchial tubes would be cooler.

豪斯: 小独角兽刺穿他的支会更酷。