The small bowel is twisted around the superior mesenteric artery.

小肠拧住了肠系膜上动。

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

系统由和其支流组成，包括脾和肠系膜。

Protein C or protein S deficiency is also sometimes suspected when a venous thromboembolism develops in an unusual site like the portal, mesenteric, or cerebral veins.

当血栓栓塞出现在不常见的部位时，也要怀疑C或S乏症，比如、肠系膜或脑部。

Finally, there's the mesentery, a large stretch of tissue that supports and positions all your digestive organs in the abdomen, enabling them to do their jobs.

最后，还有肠系膜， 这是一大片组织， 支撑并定位腹部内所有的消化器官，使它们能够各司其职。