Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt.
Microsc Microanal. 2020 Jun;26(3):589-598. doi: 10.1017/S143192762000152X.
The spleen is considered a key player in birds' immunity. The stroma and the parenchyma of the spleen of the adult quail were demonstrated histologically, histochemically, and ultrastructurally. A thin capsule and the absence of trabeculae were the most characteristics of spleen stroma. The demarcation between white pulp and red pulp was not observed in the quail. White pulp formed from the periarterial lymphatic sheath and the periellipsoidal lymphatic sheath, both of which were surrounded by arteriole and ellipsoid, respectively. Ellipsoids appeared more numerous and were characterized by cuboidal lining of the epithelium and supporting cells. Red pulp consisted of sinuses and cords. White pulp and red pulp of the quail spleen contained various cells, such as red blood cells, macrophages, heterophils with characteristic granules, lymphocytes of different sizes, dendritic cells, plasma cells, and telocytes. In addition, closed circulation and open circulation established the blood flow on the spleen.
脾脏被认为是鸟类免疫的关键因素。本研究通过组织学、组织化学和超微结构观察了成年鹌鹑脾脏的间质和实质。脾脏间质的最显著特征是薄的被膜和不存在小梁。在鹌鹑脾脏中，没有观察到白髓和红髓之间的界限。白髓由动脉周围淋巴鞘和围绕小动脉和小体的围绕小体淋巴鞘形成。小体看起来更多，其特征是上皮细胞和支持细胞的立方衬里。红髓由窦和索组成。鹌鹑脾脏的白髓和红髓包含各种细胞，如红细胞、巨噬细胞、具有特征性颗粒的异嗜性粒细胞、不同大小的淋巴细胞、树突状细胞、浆细胞和 Telocytes。此外，封闭循环和开放循环在脾脏上建立了血流。
