Unlike arteries and veins, capillaries don't operate on their own, but rather form interweaving groups called capillary beds.

与动脉和静脉不同，毛细血管不是自己运作的，而是形成交织的群体，称为毛细血管床。

Besides exchanging nutrients and gases, your capillary beds also help regulate blood pressure, and play a role in thermoregulation.

除了交换营养和气体，你的毛细血管床还有助于调节血压，并在体温调节中发挥作用。

They're cast like a spiderweb among the capillary beds.

它们像蜘蛛网一样包饶在毛细血管床之间。

Oxygenated blood gets sent from the heart to your tissues via arteries, which get smaller and smaller until they feed the capillary beds.

氧合后的血液通过动脉从心脏运输到身体各处组织，这些血管变得越来越细，并最终形成毛细血管床。

The pressure of the blood entering capillary beds forces some fluids out of the capillaries and into the tissue spaces.

进入毛细血管床的血液压力迫使一些液体从毛细血管中流出，进入组织间隙。

Your blood doesn't just flow into your lungs like an ocean wave; instead, it travels through capillaries within capillary beds.

血液不只是像海浪一样流入肺部，而是通过毛细血管床中的毛细血管流动。

Well, smooth muscle forms tiny sphincters — yeah, you've got sphincters everywhere — around the vessels that lead to each of your capillary beds.

平滑肌在通向毛细血管床的血管周围形成微小的括约肌——是的，括约肌无处不在。

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，有小静脉；小动脉和小静脉通常是由一种叫后微动脉的血管直接连接的。

So it's here in these capillary beds of the lungs that carbon dioxide is removed and oxygen is picked up from these tiny air sacs.

在肺毛细血管床上，二氧化碳被清除，氧气从这些微小的气囊中被吸收。

A backup of blood in the pulmonary veins and capillary beds can increase the pressure in the pulmonary artery and can also result in fluid moving from the blood vessels to the interstitial space causing pulmonary edema, or congestion.

而血液在肺静脉和毛细血管的积留，会提升肺动脉的压力，还会导致体液从血管流入组织间隙，引起肺水肿。