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淋巴组织布满全身,有过滤体液内毒素及产生抗体的重要功能,是体内重要防御结构之一.淋巴结由输入淋巴管、血管、神经、被膜、小梁、皮窦、淋巴小结、髓索、髓窦、输出淋巴管等组织所组成.被膜及小梁有小血管通过,血管周围有无髓鞘神经纤维伴随.体液(组织液、淋巴及血液)通过输入淋巴管进入淋巴结内的淋巴窦,经过过滤作用后经输出淋巴管输出,是抵抗外来异物侵入体
Lymphatic tissue is covered with whole body and has the important function of filtering endotoxin in the body fluid and producing antibodies, and is one of the important defensive structures in the body. The lymph nodes are composed of lymphatic vessels, blood vessels, nerves, capsule, trabeculae, sinusoids, lymph nodes, Medullary sinus, the output of lymphatic vessels and other organizations formed by the capsule and trabecular small blood vessels, with or without myelin fibers around the blood vessels accompanied by body fluids (tissue fluid, lymph and blood) by entering the lymphatic vessels into the lymph nodes within the lymph nodes, After filtering the output of the output of lymphatic output, is to resist foreign invade body