And in turn, each villus is covered in teeny tiny little microvilli.

每个绒毛上又分布有大量微小的微绒毛。

This can also be done prenatally by testing fetal DNA obtained through either chorionic villus sampling or amniocentesis.

这可在产前通过检测胎儿DNA完成，如绒毛膜绒毛取样或羊膜穿刺术。

Another example can be found in your small intestine, where structures called villi fold up into little fingers.

另一个例子可在你的小肠中找到，那里有一种叫做绒毛的结， 它们像小手指一样折叠来。

In the wall of the entire small intestine are millions of tiny, microscopic projections called villi (villus).

在整个小肠的肠壁上有数百万微小的微观的结称为绒毛（绒毛）。

Each villus is made of cells with highly folded membranes that have tiny bumps called microvilli to increase their surface area.

每个绒毛由细胞成，这些细胞的膜高度折叠，上面布满了称为微绒毛的小突，加其表面积。

This happens in the small intestine's lower regions, the jejunum and ileum, which are coated in millions of tiny projections called villi.

这一过程发生在小肠的下部，即空肠和回肠， 其内壁覆盖着数百万个微小突， 称为绒毛。

By analyzing the villi that provide contact with the mother's blood to the fetal membrane, Muneta deduced that the fetus must be living in an environment of elevated ketones from the start of pregnancy.

通过分析在母体血液和胎膜之间着纽带作用的绒毛，Muneta 推导出，在母体受孕之，初胎儿便生活在一个酮体水平较高的环境中。

He actually has, I think it's like in the second volume of his classic book on the histology of the nervous system, one of the last figures talks about like the innervation of the villi in the intestines.

他在其经典着作《神经系统组织学》的第二卷中，最后一幅图讨论了肠道绒毛的神经支配问题。