The innermost layer is the endothelium. Endothelial cells are able to rearrange themselves, charting the "route" blood vessels take.
最里面的一层被称为内皮，内皮细胞会随着血管位置的不同而重新排列。
The endothelium is surrounded by the media—a layer of smooth muscle cells that can constrict the blood vessels restrict blood flow or dilate it to let more blood through.
内皮细胞被一层平滑肌细胞包围，它可以压缩血管限制血液流动或者扩大血管让更多的血液流过。
Results in the culture of BCECs in vitro, the methods of separating posterior elastic layer and endothelium of cornea under microscope, combined with delay digestion proved to succeed easily.
结果显微分离后弹力膜及内皮细胞层联合延迟消化培养法，体外培养牛角膜内皮细胞成功率高。
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