Il.LymphoidtissueReticulartissueformsaloosenetwork.containing rich macrophages,lymphocytesandplasmacells,etc.网状维胞8巨噬细胞Dividedinto2typesbaonthecompositionandappearance:2淋巴细跑网状细脑突起Diffuselymphoidtissu@浆绳胞Lymphoid nodule11神经纤维
II. Lymphoid tissue Reticular tissue forms a loose network, containing rich macrophages, lymphocytes and plasma cells, etc. 11 Divided into 2 types based on the composition and appearance: Diffuse lymphoid tissue Lymphoid nodule
1.Diffuse lymphoidtissue(1)hasobscureboundarywith surrounding CT(2) mainly contains Tcells(3)postcapillaryvenule12
1. Diffuse lymphoid tissue (1)has obscure boundary with surrounding CT 12 (2) mainly contains T cells (3) postcapillary venule
外膜postcapillary venule(highendothelial内皮细胞核venule)穿越的淋巴细胆lined by highendothelium毛细血管后微静脉(cuboidal)Function:theimportantchannelsforlymphocyterecirculationDistribution:
postcapillary venule (high endothelial venule) lined by high endothelium 13 (cuboidal) Function: the important channels for lymphocyte recirculation. Distribution:
2. Lymphoid nodule:spherical structure withdistinct boundary, mainlycontainsBcells.primary lymphoid nodule:smallekgsecondary lymphoid nodule:germinal centerMCIt disappearswhenthe14antigens disappear
2. Lymphoid nodule: spherical structure with distinct boundary, mainly contains B cells. primary lymphoid nodule: 14 smaller. secondary lymphoid nodule : germinal center It disappears when the antigens disappear. Ag
Mucosa-associated lymphoidtissueMALT15
Mucosa-associated lymphoid tissue MALT 15