Life cycle of Entamoeba histolytica

Etiology and lifecycle of Entamoeba histolytica and its causing diseases and treatment

1. Entamoeba Dr. T. Ramesh

2. Contents GENERAL FEATURES HABIT AND HABITAT STRUCTURE LIFE CYCLE AMOEBIASIS PREVENTION AND TREATMENT

3. Introduction Unicellular or acellular organisms Phylum- Protozoa Pseudopodium- Locomotion Class- Rhizopoda Endoparasite - Living in Large intestine of Man Distribution- Cosmopolitan Amoebiasis or Amoebic dysentery

4. Structure Lives inside the large intestine Endoparasite - Single Host Fully grown and mature organisms is called- Rhizopoda Looking like Amoeba Plasmalemma - Outer layer Cytoplsam - Two layer Ecto and Endoplasm Endoplasam contains Nucleus, Food vacuoles, Contactile vacuole etc. Nucleus- Spherical and surrounded by Nuclear memembrane Centre of the Nucleus- Endosome or Karyosome Endosome covered by Chromatin

5. Nutrition & Infection Holozoic type Complete its life cycle in single host- Monogenic Infections Through Contaminated food Contaminated water

6. Amoebiasis Feeds on the mucous epithelium and causing Ulcer in th e intestine Ulcer, blood vessels damages Stool- contains mucous and blood Stool becomes loose Sever pain in the intestine

7. Prevention Before every meal, should wash hand Finger nail should be closely cut Vegetable ad other food stuff- properly cooked Drink boiled water Food stuff and water-Protected from housefly and other insects

8. Treatment It is curable diseases Drugs: Emetine, Dehydroemitine , Terramycin , Aureomycin and Erythromycin

9. Thank you