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人类的消化系统,除了消化吸收的功能外,还具有重要的免疫作用,它能阻止有害物质的侵入,并能调节全身的免疫功能。免疫功能的失调可引起某些疾病。一、消化系统的免疫结构为了阻止有害的物质入侵,消化系统形成了一道保护防线,例如消化管中分泌的大量液体(可在胃肠道内稀释及去除有害因子)和上皮细胞等,这些是物理屏障。而全身及局部的免疫结构,又形成一道免疫屏障,二者互相补充,使消化系统防止有
Human digestive system, in addition to digestion and absorption functions, but also has an important immune effect, it can prevent the intrusion of harmful substances, and can regulate the body’s immune function. Disorders in immune function can cause certain illnesses. First, the immune structure of the digestive system In order to prevent the intrusion of harmful substances, the digestive system to form a protective line, for example, secretion of digestive tract in a large number of liquids (which can be diluted in the gastrointestinal tract and remove harmful factors) and epithelial cells, which are physical barrier. The systemic and local immune structure, but also form an immune barrier, the two complement each other to prevent the digestive system