The segment of the superior mesenteric vein between the two confluences of the gastrocolic vein and ths ileocolic vein is called the "surgical trunk".
位于胃结肠静脉和回结肠静脉注入下腔静脉处之间的一段肠系膜上静脉被命名为“外科干”。
The lateral segment mey be single trunk or double trunks.
外侧段有单干型和双干型。
Veins of the madial-caudal cervical segment of the esophagus and trachea were drained into the esophatracheal vein trunk.
回流食管和气管颈段中后部血液的静脉汇入食管气管静脉干；
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