We talk about cells as being kind of the fundamental unit of humans and other multi-cellular organisms.
我们某种意义上把细胞视为,人体和其它多细胞生物的基本单位
All the cells in your body have the gene for insulin in them.
所有人体细胞都有胰岛素基因
Embryonic stem cells can give rise to every cell type in the body.
能分化出人体中,各种类型的细胞。
So, these memory cells are a way that your immune system keeps track of antigens that it's been exposed to for even if maybe the plasma cells that were producing antibody in response to the initial exposure have died and disappeared.
所以,这些记忆细胞,是人体免疫系统记忆抗原的一种方法,即使由浆细胞产生的抗体,在初次免疫应答中全部被消灭,记忆细胞仍然能迅速分化为抗体分泌细胞
Here, I've just picked a couple of the pictures that I showed you last time when we were talking about cell communication in the immune system, What happens after the vaccine is introduced into your body is that it initiates cellular events.
我挑选了,我上次给你们展示的几幅图片,当我们讨论到,免疫系统中的细胞沟通时,讲到过当人体接种疫苗之后,能够触发,细胞活动
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