来自《耶鲁大学开放课程：生物医学工程探索 第22集 第22集》

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  You can take it from the tissue sort of near the heart,
  你可以从心脏附近的组织中取动脉血管
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  it doesn't really serve as important a function,
  不会对重要的功能有影响
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  and you can bypass it in here.
  你可以在这里做旁路
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  Now you have a new artery in place to continue to flow blood.
  现在你就有一段新血管继续运送血液
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  That works, but what if you have more than one site of blockage?
  那有效 但如果你不止一个地方堵塞呢
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  What if you have a blockage here, and a blockage here,
  如果你这里有个堵塞物 这里有个
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  and a blockage over here,
  这里还有个
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  and a blockage over here so you need multiple bypasses?
  这里还有个 那么你要做多个旁路吗
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  You don't have enough arteries in order to do that.
  那样的话你没有足够的动脉血管
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  Then, the surgeon will go and take the saphenous vein from your leg.
  那样外科医生会从你的腿上取大隐静脉
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  It's a large vein in your leg that returns blood that's flowed down to
  那是一根大静脉 它将腿部下的血液
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  your leg back up to the vena cava.
  回送至腔静脉