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汉语拼音：jìng mài

从全身各器官输送血液回心脏的血管。管壁薄，中、大静脉内有瓣膜，可防止血液逆流。

1. 把血液送回心脏的血管。静脉中的血液含有较多的二氧化碳，血色暗红。

• It works only in the veins, where the blood flow is slower.

  它只在静脉里起作用，在静脉中血液流动更慢一些。

• Premature babies have to be fed intravenously.

  早产婴儿必须靠静脉输入喂养。

• Passengers on long-haul flights are being warned about the risks of deep vein thrombosis.

  长途航班上的乘客须注意可能出现深静脉血栓。

• The blood flows from the capillaries back into the veins.

  血从毛细血管流回静脉.

• The doctor injected glucose into his patient's veins.

  医生将葡萄糖注入病人的静脉.

• The doctor injects glucose into the patient's vein.

  医生把葡萄糖注射入病人的静脉.

• He could have died after developing deep vein thrombosis during a flight to Sydney.

  他在一次飞往悉尼的航行中得了深静脉血栓，险些丧命。

• Three of my veins had furred up and I needed a triple bypass.

  我有三条静脉出现了堵塞，需要做个三支搭桥手术。

• The surgeon placed catheters through the veins and arteries near the base of the head.

  外科医生在脑根部的静脉和动脉中放置了导管。

• The results from one of the largest studies yet carried out leave little doubt that DVT is caused by flying.

  迄今为止最大一项研究的结果无疑表明严重静脉血栓是由飞行引起的。

• With this disease the veins in the liver can block up, and all sorts of damage follows.

  这种病会堵塞肝脏中的静脉，并引发多种损伤。

• The artery ramified into a network of veins .

  动脉分枝成许多网状的静脉。

• The cephalic veins are sometimes difficult to isolate.

  部分患者分离头静脉存在困难。

• Many veins are found just under the skin.

  许多静脉血管就在皮肤下面。

• A cannula has to be inserted into a leg vein.

  必须应用小腿的静脉放置导管.