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人体一部分骨髓干细胞,在胸腺影响下发育为 T 淋巴细胞(简称 T 细胞),具有细胞免疫功能,分布于淋巴结(皮质旁区)、脾(中央动脉周围区)、淋巴样组织及周围血液中;另一部分骨髓干细胞(在鸟类已查明受腔上囊的影响,在人尚未查明),发育为 B 淋巴细胞(简称 B 细胞),具有体液免疫功能,分布于淋巴结(皮质区)、脾、淋巴样组织(生发中心区)及周围血液中。T 细胞和 B 细胞均有识别抗原的作用,是机体主要的免疫活性细胞。分离和检验周围血液中 T 细胞和 B 细胞的数量和功能,可用作测定机体的免疫机能状态的
Some human bone marrow stem cells under the influence of the thymus develop into T lymphocytes (T cells for short), with cellular immune function, located in the lymph nodes (cortical area), spleen (central artery area), lymphoid tissue and the surrounding blood; Another part of bone marrow stem cells (in birds have been identified by the impact of supragingular sac, has not been identified in humans), the development of B lymphocytes (B cells), with humoral immune function, distributed in the lymph nodes (cortical area), spleen , Lymphoid tissue (germinal center) and the surrounding blood. T cells and B cells have the role of antigen recognition, is the body’s main immune cells. Isolation and testing of peripheral blood T cells and B cells in the number and function can be used to determine the body’s immune function state