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血液的吞噬细胞是指血液中的中性粒细胞(简称粒细胞)及单核细胞,是机体防卫系统中抗御外来微生物不可缺少的组成部分。当这些细胞发生数量及质量异常时,均可招致反复严重感染,甚至死亡。本文主要讨论粒细胞及单核细胞的功能及发生质量异常时所致的疾病。一、血液吞噬细胞的功能(一) 趋化作用及细胞移动功能:血液中吞噬细胞的基本功能是吞噬微生物及随后把它们消灭。机体的一些组织,如皮肤、上呼吸道及胃肠道粘膜与微生物有密切接触。位于这些组织血管内循环着的粒细胞及单核细胞,可通过血管的内皮细胞及基底膜,移到
Blood phagocytic cells refer to neutrophils (monocytes) and monocytes in the blood and are an indispensable part of defense against foreign microorganisms in body defense systems. When the number of these cells and the quality of abnormalities, can lead to repeated serious infections, and even death. This article focuses on the function of granulocytes and monocytes and the diseases caused by abnormal quality. First, the blood phagocyte function (A) Chemotaxis and cell migration function: The basic function of phagocytes in the blood is to swallow the microorganisms and then destroy them. Some of the body’s tissues, such as skin, upper respiratory tract and gastrointestinal mucosa, are in close contact with microorganisms. Located in the blood vessels within these organizations circulating granulocytes and monocytes, vascular endothelial cells and basement membrane can be moved to