北京鸭淋巴结中淋巴窦的超微结构  

Ultrastructure of the lymphotic sinus in lymph node of Peking duck

作　　者：熊喜龙[1] 邓衔柏中国农业大学兽医学院 姚丰华[1] 刘济五[2] 冀德君[3] 

机构地区：[1]扬州大学兽医学院,江苏扬州225009 [2]中国农业大学兽医学院,北京100094 [3]扬州大学动物科学学院,江苏扬州225009

出　　处：《中国兽医学报》2008年第2期189-192,共4页Chinese Journal of Veterinary Science

摘　　要：采用透射电镜对6周龄健康北京鸭淋巴结中淋巴窦超微结构进行了研究,结果显示：被膜下淋巴窦窦壁由单层扁平淋巴内皮细胞及突起所组成,相邻细胞突起间呈重叠状并出现紧密连接。索间淋巴窦窦壁除呈现上皮性紧密连接外,还存在15～24 nm细胞间隙。淋巴窦内可见如下细胞：淋巴细胞（以小型为主,中型淋巴细胞较少）、浆细胞（包括浆母细胞和幼浆细胞）、网状细胞、巨噬细胞、有粒白细胞（包括嗜酸性白细胞和异嗜性白细胞）、红细胞（包括早幼红细胞、中幼红细胞及成熟红细胞,可见细胞分裂中期、染色体形成期的中幼红细胞,说明北京鸭红细胞在淋巴窦内存在成熟过程）、类分泌细胞（该细胞具有特殊颗粒,颗粒内有细小微粒,被界膜包裹,或颗粒内小管,有的小管呈现同心圆式排列;在淋巴窦和淋巴索内均有该细胞）。Through transmissive electronic microscope,the ultrastructure of lymphatic sinus of healthy Peking ducks of 6 weeks of age was investigated.The results showed that： The wall of the subcapsular sinus consisted of the lymphatic endothelial cells and protuberances with overlapping and tight junctions between adjacent protuberances.15-24 nm cell gaps as well as epithelium-like tight junctions appeared in the wall of lymphatic sinus between the cords.The cells appeared in lymphatic sinus including：（1）lymphocytes with a major part of small types and a minor part of middle types,（2）plasma cells including plasmablasts and young plasma cells,（3）reticulum cells,（4）macrophages,（5）granular leukocytes including acidophilic granulocytes and heterophilic granulocytes,（6）erythrocytes including early erythroblasts,intermediate erythroblasts on different divisional metaphases and mature erythroblasts,demonstrating that erythroblasts experienced a process of maturity in the lymphatic sinus of Peking ducks,（7）secretory-like cells with special granules,in which thin microgranule was found covered by kingdom membrane,and /or microtubes was found,of which some formed concentric circles.This type of cells could be discovered in both lymphatic sinuses and lymphatic cords.The findings would pave a morphological foundation for researching on fowl lymphatic physiology and pathology.

关 键 词：超微结构 淋巴结 淋巴窦 北京鸭 

分 类 号：S852.16[农业科学—基础兽医学]