Interestingly, once the blood leaves these glomeruli it does not enter into venules.

有趣的是，当动血离开这些肾球后，并不进入。

The oxygen-rich blood moves into a venule and then, eventually, into a pulmonary vein that dumps the blood into the left atrium.

富含氧气的血液汇入，最终进入；将血液排入左心房。

On the other end of the capillary bed there's a venule, and the arteriole and venule are usually directly connected by a vessel called the metarteriole.

在毛细血管床的另一端，有；动和通常是由一种叫后微动的血管直接连接的。

And blood pressure in veins is extremely low compared with pressure in arteries. The smallest veins, called venule , are formed by the union of capillaries.

微 壁略厚于毛细血管壁。随着变大，管壁变厚。

Loaded up with carbon dioxide, the blood turns that dark red color again (shown as blue) and starts the return journey to the heart by going into small venules and then larger veins.

随着二氧化碳的增加，血液会再次变成暗红色（画为蓝色）并开始返回心脏，先是进入，然后是较大的。

The cells send their CO2 and other junk out to the venal end of the capillary exchange where the capillaries unite into venules, and then merge into veins that head back to the heart.

细胞将二氧化碳和其他垃圾输送到毛细血管交换的端，毛细血管在那里结合成，然后合并成返回心脏。

So as we get older, especially at my age, the smooth muscle around our small veins, our venules, They get weak, and our little venules get stiff.

所以随着年龄的增长，特别是到了我这个年纪，我们周围的平滑肌会变弱，而这些也会变得僵硬。