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一、名词解释 1.条件致病菌:寄居人体各部位的正常菌群,离开原来的寄居场所,而进入身体的其他部位,也可引起疾病,将这些微生物称为条件致病菌。 2.细胞免疫:T细胞接受抗原刺激后,分化增殖形成致敏的T细胞,后者与相应抗原接触时,通过释放淋巴因子与细胞毒效应产生免疫作用,这个过程称为细胞免疫。 3.无菌:物体中无活的微生物存在,称为无菌。 4.类毒素:细菌外毒素经甲醛处理,使其毒性消失,抗原性保存,称为类毒素。
First, the term explained 1. Conditions Pathogenic bacteria: the normal population living in various parts of the human body, leaving the original place of residence, and into other parts of the body, but also cause disease, these microorganisms are called opportunistic pathogens. 2. Cellular immunity: T cells after receiving antigen stimulation, differentiation and proliferation of the formation of sensitized T cells, the latter in contact with the corresponding antigen, by releasing lymphokines and cytotoxic effects have an immune effect, this process is called cellular immunity. 3. Sterility: There is no live microorganisms in the object, called sterile. 4. Toxoid: bacterial exotoxin by formaldehyde treatment, the toxicity disappeared, antigenic preservation, known as toxoid.