Now, the portal venous system comprises of the portal vein and its tributaries, namely the Splenic and Mesenteric veins.

门静脉系统由门静脉和其支流组成，包括脾静脉和肠系膜静脉。

The round ligament stay shut because pressures in the portal venous system and the systemic venous system are the same under 12 mmHg.

圆韧带保持关闭状态，这是因为门静脉系统里的血压和体静脉系统的血压都同样是低于12mmHg的。

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，肝脏将血液通过下腔静脉进入体静脉系统送往心脏。

It's interesting to note that the lymphatic system drains into the venous system all the way up at your shoulder region.

值得注意的是，淋巴系统在肩部一直向上流入静脉系统。

The lymphatic vessels direct lymph toward the upper chest, where they finally return to the venous blood system through one of two large ducts.

淋巴管将淋巴管引向上胸部，最后它们通过两条大导管之一，返回静脉血液系统。

Portal hypertension leads to the formation of Portosystemic shunts, which is when blood is diverted away from the portal venous system and backs up into the systemic veins.

门静脉高压症可导致门脉-体静脉系统分流的形成，即血液从门静脉系统转向分流，回到了体静脉系统。

Second, blood backing up in the systemic veins leads to portal systemic shunts, which happens in the three points where the systemic venous system and hepatic portal system are connected.

其次，淤积在体静脉的血液造成门脉-体静脉系统分流，发生在三个部位，即体静脉系统与肝脏门脉系统相连接的地方。