The first type of epithelium is called keratinized stratified squamous epithelium.

第一种上皮名叫角化复层鳞状上皮。

These club cells secrete glycosaminoglycans which protect the bronchiolar epithelium.

棒状细胞能分泌糖胺聚糖，来保护细支气管内膜。

Fatty acids and glycerol can easily pass through the small intestinal epithelium and into the lymphatics.

脂肪酸和甘油三酯都能轻易穿过肠壁进入淋巴管。

And then there is the glandular epithelium, which forms glands and secretes hormones and other substances.

后是腺上皮，形成腺体并分泌激素和其他物质。

On the other hand, rhinoviruses commonly infect the epithelium of the respiratory mucosa, which lines the nasal cavity.

另一方面，鼻病毒通常会染鼻腔周围的呼吸粘膜上皮细胞。

Your primary epithelium protects your whole body, inside and out.

你的初级上皮保护你的整个身体，从里到外。

It infects the epithelium of the respiratory mucosa, typically through a nasal route of transmission.

它通常通过鼻传播，染呼吸粘膜上皮。

A perforation becomes permanent when its edges are covered by squamous epithelium and it does not heal spontaneously.

当穿孔的边缘被鳞状上皮覆盖且不能自动愈合时，穿孔就成为永久性的。

Like the rest of the respiratory tract, the walls of the larynx are made up of mucosal epithelium.

和其它呼吸上皮一样，喉的上皮也是黏膜上皮。

A simple epithelium has only one layer of cells.

一个简单的上皮只有一层细胞。

As the cancer cells move into the epithelium, there's inflammation which brings extracellular fluid out through breaks in the skin.

随着癌细胞侵犯上皮，会有炎症导致细胞外液从皮肤的破口带出。

Squamous cell carcinoma arises from the stratified squamous epithelium.

食管鳞癌起源于复层鳞状上皮。

So, adenocarcinoma arises from columnar glandular epithelium.

腺癌来源于柱状上皮腺体细胞。

Squamous cell carcinoma, as you can tell by its name, arises from squamous epithelium.

鳞状细胞癌（鳞癌）正如其名，来源于鳞状上皮细胞。

Most of the oral cavity is lined by stratified squamous epithelium, so the majority of cancers that arise are squamous cell cancers.

口腔内大部分表面都由复层鳞状上皮覆盖，所以大部分口腔癌都属于鳞状细胞癌。

There's the " proper" epithelium, which covers and lines your outer and inner body.

一个是“适当的”上皮，它覆盖并排列你的外身体和内身体。

The oral surfaces covered in keratinized epithelium include the hard palate, the dorsal surface, or top, of the tongue, and the gingiva.

口腔表面由角化上皮覆盖的结构包括硬腭、舌的背侧面（或上面）与牙龈。

Finally, at the lower esophageal sphincter, the squamous epithelium joins the columnar gastric epithelium to form the gastroesophageal junction.

最后，在食管下括约肌处，食管鳞状上皮移行为胃柱状上皮，形成了胃-食管交界区。

Smelling actually happens way up near the bridge of our noses in a postage stamp-sized square of tissue called the olfactory epithelium.

嗅觉实际上发生在靠近我们鼻梁的邮票大小的正方形组织中，称为嗅觉上皮细胞。

A second type of epithelium is non-keratinized stratified squamous epithelium, and it contains cells that don't produce much keratin, making this layer less tough.

第二种上皮是未角化的复层鳞状上皮，其细胞产生的角质较少，故这层结构相对比较脆弱。