The only cells it really infects are what we call respiratory epithelial cells, a one-cell layer of cells that kind of protect the breathing tubes and the lungs, all the way down to the bottom, where we have air sacs.

唯一真正受到感染的是我们所说的呼吸上皮，一种保护呼吸管和肺的层，一直到管道底部有气囊的地方。

When the APC gene is mutated, the epithelial cells start to quickly divide forming polyps.

当APC基因突变时，上皮开始快速增殖，形成息肉。

The epithelial cells can absorb these nutrients into the bloodstream, and from there they can go to various tissues around the body.

上皮能将这些营养物质吸收入血，再经血液循环将营养物质运送至全身各种组织。

HHV-8 is transmitted through sexual contact, and once in the body, it uses the viral glycoproteins on its envelope to enter a wide variety of cells, such as B cells, endothelial cells, macrophages and epithelial cells.

HHV-8通过性接触传播，一旦进入宿主体内，它会利用囊膜上的病毒糖蛋白进入多种内，例如B、内皮、巨噬上皮。

Whether they bind directly to the GBM, or come from somewhere else, these immune complexes are called subepithelial deposits because they're sandwiched right between the epithelial cells or podocytes, and the GBM.

无论是直接肾小球基膜结合或从别处而来，这些免疫复合物称之为上皮下沉积物，因为它们位于足这类上皮和肾小球基膜之间。

From your stomach on down, though, the inner GI tract is lined with simple columnar epithelial cells, which secrete all sorts of stuff, and which absorb and process various nutrients.

然而，从你的胃开始，内侧胃肠道排列着简的柱状上皮，它们分泌各种东西，吸收和处理各种营养。

Although it's not always needed, diagnostic testing for RSV can be done by swabbing epithelial cells in the nasopharynx and looking for the presence of viral antigens.

可以通过擦拭鼻咽部上皮，是否存在病毒抗原，但这一并不是人人都必要的。

The second most common cause is called Conn syndrome and this is where an adenoma or tumor in the glandular epithelial cells secretes too much hormone.

第二常见的原因称为Conn综合征：这是由于起源于腺上皮的腺瘤或肿瘤分泌过多的激素。

In chronic laryngitis the normal columnar cells undergo dysplasia, which is when they transform into squamous epithelium to adapt to the chronic irritation.

慢性喉炎中，正常柱状异型增生转变为鳞状上皮，来适应慢性刺激。

During a yeast infection, discharge may become thicker and whiter because the vagina is shedding more epithelial and Candida cells.

在酵母菌感染期间，由于阴道脱落更多的上皮和念珠菌，分泌物可能会变稠变白。

The large airways are lined mostly by ciliated columnar cells and a handful of goblet cells which get their name from looking like a wine goblet or glass, and secrete mucus.

大的气道含有大量纤毛柱状上皮少数杯状；杯状因形似玻璃杯而得名，且分泌粘液。

They're incorporated into the epithelial cells lining Elysia's digestive system that branches throughout its flat body.

它们被整合到绿叶海天牛消化系统的上皮中，并广泛分布在它扁平的身体上。

When this happens, squamous cells start dividing uncontrollably, and more mutations accumulate with each division.

当基因突变发生，鳞状上皮开始不受控地分裂，随着每一次分裂，新的突变还会继续积累。

In the bronchioles you've got the lumen, the mucosa which includes the inner lining of epithelial cells as well as the lamina propria, and the submucosa which is where the smooth muscle lives.

在支气管内，有腔体、粘膜（包括上皮的内层、固有层），以及粘膜下层，也就是平滑肌所在的地方。

Basal epithelial cells are extremely dynamic and replace the gustatory cells every week or so, which is why even a terribly burned tongue will feel better in a couple of days.

基底上皮非常活跃，大约每周都会更换味觉，这就是为什么即使是严重烫伤的舌头也会在几天内感觉好些。

The other way epithelial cells can necrose is via nephrotoxins, which are substances that tend to damage the epithelial tubular cells.

另一种上皮坏死的方式是由于肾毒素，这些物质往往损坏肾小管上皮。

The CPE specifically targets the tight junctions that connect epithelial cells lining the intestines to one another.

毒素（CPE）作用于肠上皮之间的紧密连接。

We also talked about how epithelial cells are polar, having both apical and basal sides, and are selectively permeable, and lastly we took a brief look at how our glandular epithelial tissue forms both out endocrine and exocrine glands.

我们还讨论了上皮是如何极性的，具有顶端和基底两侧，并且具有选择性渗透性，最后我们简要了解了我们的腺上皮组织如何形成内分泌腺和外分泌腺。

These guys can transform into ciliated columnar cells, so they help regenerate and replace damaged ciliated columnar epithelial cells if needed.

它们可以转化为纤毛柱状上皮，必要时可以替代和修复受损的纤毛柱状上皮。

These epithelial cells produce keratin, a protein that makes the layer tough, and protects against normal wear and tear from food and drinks.

这些上皮产生角质，一种让这层结构变得坚硬的蛋白质，能保护黏膜免受饮食物的磨损。