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胸主动脉
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胸主动脉
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主动脉
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thoracic aorta
胸主动脉
在第4胸椎下缘处由主动脉弓延续而来,沿脊柱和食管的左侧下行,至第7胸椎平面以下逐渐转至脊柱前方和食管后方,于第12胸椎处穿膈的主动脉裂孔移行为腹主动脉。
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