and this glomerulus aren't shown

不过这个肾小球没有被全部显示出来
so that we can focus on just a few of them.

所以我们就重点看其中几个
Just to give you a sense for these million nephrons

这里只是为了让你们有个概念
that are arranged in the kidney,

肾脏中排列着这些数以百万计的肾单位
they have their glomeruli at different locations, up and down,

与各自的肾小球在不同位置相连纵横交错
they are surrounded by their proximal and distal convoluted tubules,

他们被近曲小管和远曲小管包被着
and these Loops of Henle stretch down into the medullary region

并且这些亨利氏环向下延伸进入髓质区域
and then come back up.

然后向上折返
I wanted to use this more complicated diagram to sort of illustrate the flow.

我想用这个更复杂的图来解释滤液的流向
How does fluid move through this--

液体是如何通过这个
through one particular nephron within this system here,

通过系统中的一个肾单位
and so I hope this comes out.

我希望这里能说清楚