Both vena cavas [sic] are veins, which bring blood towards the heart.

上、下腔均为，运送液回流到心脏。

Even partial compression of the superior vena cava can cause the venous pressure behind the obstruction to increase.

局部压迫上腔甚至能造成阻断后方压升高。

Also, a filter can be surgically placed in the inferior vena cava to prevent pulmonary embolisms.

也可以放置下腔滤器来防止肺栓塞发生。

But in some situations, an obstruction may prevent blood flow from the portal vein towards the inferior vena cava.

但有时从门流到下腔流会受阻。

Got it. Wait, I-I think I can localize the bleeding. I think it's coming from the inferior vena cava.

搞定。等等，想可以把止住了。想它是从下腔来。

CT scan or MRI help diagnose ascites, cirrhosis, splenomegally or vascular alterations like inferior vena cava dilatation.

CT扫描或MRI有助于诊断腹水、肝硬化、脾肿大，或管病变（如下腔扩张）。

On the right side, the superior vena cava, ascending aorta, right ventricle, left ventricle, and inferior vena cava should all be visible.

在心脏右侧，分别是上腔、升主动、右心室、左心室和下腔。

This happens when there's an obstruction in the passage of blood from the portal vein towards the vena cava.

当液从门流向腔通道阻塞时，就会发生这种情况。

Ultimately, all of the blood ends up in the superior or inferior vena cava and dumps into the right atrium.

最终，所有液都回流至上腔和下腔，最终抵达右心房。

The superior vena cava is found in the upper chest.

上腔位于上胸部。

Lastly, G is for great vessels which includes the superior vena cava, inferior vena cava, ascending aorta, aortic arch, pulmonary artery, and descending aorta.

最后，G指大管" Great vessels" ，包括了上腔、下腔、升主动、主动弓、肺动与降主动。

The superior vena cava resembles a drain that leads down into the heart.

上腔像通向心脏引流管。

Blood from the upper body returns via the superior vena cava, blood from the lower body returns via the inferior vena cava.

上半身液通过上腔回流，下半身液通过下腔回流。

Once the liver processes all these substances, it sends the blood to the heart through the inferior vena cava to enter the systemic venous system.

一旦肝脏处理了所有这些物质，肝脏将液通过下腔进入体系统送往心脏。

So, if you think about it, the blood that drains into the inferior vena cava has to move upward, against gravity.

所以，如果你仔细想想，流入下腔液必须向上流动，对抗重力。

So far, we've learned that blood returning to the heart from head to toe drains into the superior and inferior vena cava.

到目前为止，们已经了解到，液从头到脚流回心脏，流入上下腔。

A Pancoast tumor in the right lung apex can also compress a large vein called the superior vena cava which drains blood from the head, upper chest, and arms.

右侧肺上沟瘤还会压迫上腔；上腔汇集头部、上胸部和上肢液。

The job of the superior vena cava is simple, and like many other major veins in the body, it is nothing more than a transportation tube.

上腔作用很简单，和体内其他许多主要一样，它不过是一个运输管。

The venae cavae has two divisions: the superior vena cava and the inferior vena cava, and these divisions both return blood to the right atrium of the heart.

上腔和下腔，这些分支都将液回流到心脏右心房。

This is a good way to think about the superior vena cava, because its job is to drain (or return) deoxygenated blood straight down into the right atrium.

这是考虑上腔好方法，因为它工作是将脱氧液直接排入（或回流）到右心房中。