人类的消化系统是一个重要的免疫器官,它阻止各种有害大分子的入侵,保证肠道的消化吸收功能,并调节全身的免疫功能。其中胃肠道是第1道防线,肝脏是第2道防线。消化系的免疫系统及其功能肠道淋巴组织有4种。集合淋巴组织包括扁桃体、增殖体、Peyer淋巴集结和阑尾。其基本结构相同,可以Peyer淋巴集结为代表。小肠粘膜下的淋巴集结称为Peyer结,有T细胞和B细胞区。淋巴 The human digestive system is an important immune organ, it prevents the invasion of various harmful macromolecules, to ensure the intestinal digestion and absorption function, and regulate the body’s immune function. The gastrointestinal tract is the first line of defense, the liver is the second line of defense. There are 4 types of digestive system’s immune system and its function gut lymphoid tissue. Aggregated lymphoid tissues include tonsils, proliferators, Peyer’s patches and appendix. The basic structure of the same, you can Peyer lymph aggregation as a representative. Small intestinal submucosal lymph node assembly called Peyer knot, T cell and B cell area. lymph