Any harmful microbes that make it into the epidermis will encounter Langerhans cells.

若有害微生物得以侵入，就会遇到郎格汉斯细胞。

It's a sensation that reaches from the epidermis to the brain.

这是一种从延伸到大脑的感觉。

Initially, ink is deposited into the epidermis as well, but as the skin heals, the damaged epidermal cells are shed and replaced by new, dye-free cells with the topmost layer peeling off like heeling sunburn.

其实，纹身的过程也会把颜料植入，但是随着肤的自我修复，损坏的细胞脱落被新的、没有颜料的细胞所替代，如同肤被阳光灼伤一样脱落。

For example, our skin, the outer layer is called your epidermis.

例如，我们的肤，叫做。

Every second, some 500 new cells split off from stem cells at the base of the epidermis and join this army, gradually migrating to the surface of your skin as younger cells form beneath and push them upwards.

每一秒钟，约有500个新细胞从底部的干细胞中分裂出来，加入这个大军，随着下面年轻细胞的形成，逐渐迁移到你的肤面，并将它们向上推。

UVB light is higher energy and can cause sunburns while UVA penetrates deeper under the skin and can damage skin cells along the bottom layer of your epidermis.

中波能量较高，会造成晒伤。而长波可以穿入肤内部，破坏底部的肤细胞。

That proboscis though keeps going into the dermis, since the epidermis just gets oxygen from the air and doesn't have its own blood supply, whereas the dermis does, and this is what our mosquito's after, right, the blood meal.

但蚊子的喙一直刺入真，因为只是从空气中获取氧气，不像真有血液供应；这就是蚊子的目标：血液大餐。

In your mouth, in your esophagus, and at the other end of things, at your anus, you have stratified squamous epithelial tissue, just like your epidermis, to help resist the abrasive action of like, chewing, like corn chips, maybe.

在你的嘴里，在你的食道里，在东西的另一端，在你的肛门里，你有分的鳞状上组织，就像你的一样，帮助抵抗研磨作用，比如咀嚼，比如玉米片，也许。

The dermal tissue covers the entire outside of the plant, forming the epidermis, which is coated in a layer of wax called a cuticle.

组织覆盖了植物的整个部，形成了，上覆盖着一叫做角质的蜡。

The pigment is produced by special cells called melanisites, which are present in the outermost layer of the skin, called the epidermis.

这种色素是由称为黑石的特殊细胞产生的，这种细胞存在于肤的最，称为。

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

由真支撑，在真中有神经末梢、汗腺、毛囊和结缔组织。

Above the palisade mesophyll and below the spongy mesophyll are epidermis cells, which produce a waxy coating called the cuticle.

掌状中叶以上和海绵状中叶以下是细胞，它们会产生一种称为角质的蜡质涂。

When Aedes aegypti or Aedes albopictus, both species of Aedes mosquito, lands on your skin and sticks in it's long nose—or proboscis, it pierces the epidermis which is the topmost layer, composed almost entirely of keratinocytes.

当伊蚊属的埃及伊蚊或白纹伊蚊落在你的肤上并刺入她的长鼻子——或者说喙时，它会刺穿最上的；该几乎完全由角质形成细胞组成。

And below that, we've got another layer of epidermis and cuticle.

而在这下面，还有一和角质。

When something makes contact with our skin, nerve endings in the epidermis, the outermost layer of our skin, relay this information through electrical and chemical messages, up the spine and to the brain.

当有东西接触到我们的肤时，的神经末梢，我们肤的最，通过电和化学信息传递这些信息，向上到达脊柱和大脑。

Some protect against plant-eating animals by secreting itchy toxins from the leaf or stem epidermis, which, if you've ever run into a stinging nettle, you are already painfully familiar with.

有些植物通过从叶子或茎分泌令人发痒的毒素来保护自己免受食草动物的侵害，如果你曾经遇到过荨麻，那么你就已经对这种毒素很熟悉了。

The giant, never-ending task of producing this armor is carried out by an equally giant and never-ending army of skin cells in the underlying epidermis.

生产这种盔甲的巨大的、永无止境的任务，是由下同样巨大的、永无止境的肤细胞大军来完成的。

Your skin is like a layer cake, and the icing on that cake is a thin layer of cells called the epidermis.

你的肤就像一块多蛋糕，细胞就像蛋糕上的糖霜。

But many dermatologists think that most of these anti-aging peptides are just too large to squeeze in between cells in the epidermis.

但很多肤医生还是认为这些抗老肽实在太大，很难把它们挤到真的细胞间。

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.

，真和下组织。肤最薄处为0.5mm，最厚处为4mm。