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乙狀結腸結腸終末部分,通常位於盆腔中,上在左髂嵴平面與降結腸相連,下在第三骶椎平面與直腸相接,長約40~50cm,因呈「乙」狀彎曲而得名。

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1.升結腸 2.橫結腸 3.降結腸 4.乙狀結腸 5.直腸

參考資料

  • 《人體解剖學》,北醫大協和醫大聯合出版社,2001年

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