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人体消化道分为上消化道和下消化道,上下消化道以屈氏韧带为分界线。屈氏韧带是划分上下消化道的标志性韧带,它位于横结肠根部第二腰椎左侧,屈氏韧带以上的消化道从口咽→食管→胃→十二指肠→上段空肠为止是上消化道;屈氏韧带以下的消化道从下段空肠→回肠→盲肠→结肠→直肠为止是下消化道。上消化道出血是屈氏韧带以上部位的出血,多发生在食管、胃、十二指肠、食管胃底静脉等处,上消化道出血是一种常见病。
The human digestive tract is divided into upper digestive tract and lower gastrointestinal tract, upper and lower digestive tract to the ligament as the dividing line. Qu Wei ligament is divided into the upper and lower gastrointestinal landmark ligament, which is located in the transverse root of the second lumbar spine left, more than the ligaments of the digestive tract from the oropharynx → esophagus → stomach → duodenum → upper jejunum is the upper gastrointestinal tract ; Below the ligaments of the digestive tract from the lower jejunum → ileum → cecum → colon → rectal until the lower digestive tract. Upper gastrointestinal bleeding is more than the bleeding of the upper part of the ligament of the Tuina, occurs in the esophagus, stomach, duodenum, esophageal and gastric venous, upper gastrointestinal bleeding is a common disease.