原虫概论、溶组织内阿米巴、结肠内阿米巴.ppt

医学原虫medical protozoon
概论
Characters:
单细胞真核生物
体积微小
构造简单,具生命的基本特征和功能
可寄生于细胞、体液、组织或腔道中,有致病性、非致病性之分
Medical protozoon
Protozoa:
above 65000 species
Medical protozoa:
about 40 species
Asexual
binary fission(二分裂)
multiple fission(多分裂)
budding(出芽生殖)
Sexual
gametogony(配子生殖)
conjugation(结合生殖)
How to reproduce?
How to cause disease?
proliferation(增殖作用)
Spreading(播散能力)
opportunistic infection
Classfication
According to anelles(运动器官):
Pseudopodium(伪足): 阿米巴
Flagellum(鞭毛): 鞭毛虫
Cilia(纤毛): 纤毛虫
no anelles: 孢子虫
Amoeba
Free-living:nonpathogenic amoeba
pathogenic:耐格里阿米巴, 棘阿米巴
commensalism:
迪斯帕内、结肠内、齿龈、微小内巴、哈门氏内、布氏嗜碘
parasitism:溶组织内阿米巴!!!
Entamoeba histolytica溶组织内阿米巴
move with pseudopodium (伪足)
amoeba dysentery(痢疾阿米巴)