Which two layers make up the dermis?

哪两层构成皮？

With this test, tuberculin is injected between layers of the dermis.

在这个试验中，结核菌素注射于两层皮之间。

You can expect even more damage to the lower layer of your skin, AKA the dermis.

你的皮肤下层，也就是皮层，可能会受到更多的损伤。

With less structural support from the dermis, your skin starts to look thinner and build up wrinkles.

你的皮肤也因皮层功能的衰退显得更薄，并且产生皱纹。

And that includes molecules in the dermis like elastin and collagen, creating tangled clumps or breaking them down.

而这些分子又包括像皮中的弹性蛋白和胶原一类的物质，造成结束或分解。

Generally taken from the dermis of the skin.

一般取自皮肤皮层。

At any given time, up to 25% of the body's blood is circulating through the dermis, making this process extremely efficient.

在任何时间，超过25%的身体血液通过皮循环。这使得调节体温这个过程非常有效。

The epidermis is supported by the dermis, which is where you'll find nerve endings, sweat glands, hair follicles, and connective tissue.

表皮由皮层支撑，在皮层中有神经末梢、汗腺、毛囊和结。

Even worse, that fire causes damage to the dermis, the tissue below the skin.

更糟糕的是， 火灾会损坏皮， 皮肤下的。

Paper can also leave fragments and chemicals behind that irritate your vulnerable inner skin layer, or dermis.

纸张还会留下碎片和化学物质，它们会刺激您脆弱的皮肤内层或皮层。

That's because these are bones that are formed completely within the dermis, which is the lower layer of the skin.

那是因为这些是完全在皮内形成的骨骼，皮是皮肤的下层。

So retinoids can help maintain the structure of your dermis and fight off wrinkles by making your body produce more collagen, elastin, and GAGs.

类维生素 A 能促使身体产生更多胶原、弹性蛋白和糖胺聚糖，从而有助于保护皮结构，抵抗皱纹。

Some of the ink particles are also suspended in the gel-like matrix of the dermis, while others are engulfed by dermal cells called fibroblasts.

有些颜料颗粒悬浮在胶质的皮结构中，而其它颜料颗粒被叫做成纤维细胞的皮细胞吞噬。

The needles punch through the epidermis, allowing ink to seep deep into the dermis, which is composed of collagen fibers, nerves, glands, blood vessels and more.

针刺透表皮让颜料深入皮，皮之下是胶原纤维、神经、腺体、血管等等。

These microbes, which include bacteria and fungi, thrive in the sebum, an oily substance that's secreted onto the skin's surface by sebaceous glands nestled inside the dermis.

包括细菌和菌的这些微生物，在皮脂内十分活跃，也就是由紧贴在皮内的皮脂腺分泌到皮肤表面的油性物质。

Made up of three layers, the epidermis, dermis, and hypodermis, skin's thickness varies from 0.5 millimeters at its thinnest and up to four millimeters at its thickest.

表皮层，皮层和皮下。皮肤最薄处为0.5mm，最厚处为4mm。

These microbes, which include bacteria and fungi, thrive in the sebum, an oily substance that’s secreted onto the skin’s surface by sebaceous glands nestled inside the dermis.

这些微生物（包括细菌和菌）在皮脂中大量繁殖，皮脂是一种油性物质，由位于皮内的皮脂腺分泌到皮肤表面。

Made up of three layers, the epidermis, dermis, and hypodermis, skin’s thickness varies from 0.5 millimeters at its thinnest and up to four millimeters at its thickest.

皮肤由表皮、皮和皮下三层成，厚度从最薄的 0.5 毫米到最厚的 4 毫米不等。

(Laughter) Micropigmentation is the act of implanting pigment into the dermis, which is the definition of a tattoo, but it sounds nicer, doesn't it, a bit less scary.

（笑声） 微色素沉着是将色素植入皮的行为，这是纹身的定义， 但它听起来更好， 不是吗，不那么可怕。

As these cells travel through the lymphatic system, some of them are carried back with a belly full of dye into the lymph nodes while others remain in the dermis.

当这些细胞在淋巴统中运动，有一部分携带着大量颜料进入淋巴结，另外一些依然留在表皮之下。