来自《耶鲁大学开放课程：生物医学工程探索 第23集 第23集》
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The technique is fairly在这幅卡通中 -
straightforward and shown in this cartoon,非常明晰地描述了这项技术 -
that cells are cultured.这些是培养中的细胞 -
These are special cells in a couple of different ways.这些细胞有很多很特别的地方 -
One is they are human cells,首先 它们是人类细胞 -
and they are harvested from human umbilical veins.是从人类的脐血中收集到的 -
The umbilical vein, which is normally discarded after delivery,脐血 通常在分娩结束后 -
the baby is born,即小孩出生后被扔掉 -
the umbilical cord and the placenta are ordinarily discarded.脐带和胎盘通常会被扔掉 -
If you keep that tissue,如果你保留这些组织 -
you can isolate the cells that form the lining of that tissue.你就能分离出形成组织的细胞 -
It's a vein and what you这是一条静脉血管