In this article we will discuss about the structure and life history of flagellate or Giardia intestinalis (explained with diagram). Structure of Flagellate: Flagellate occurs in two different forms: 1. Trophozoite or feeding stage and 2. Cystic stage. 1. Trophozoite or Feeding stage: It possesses a bilateral symmetrical body with organelles occurring in pairs and measures 10-18 μm length. The [...]
In this article we will discuss about the life cycle of trypanosoma gambiense. Trypanosoma gambiense is digenetic; i.e., it completes its life cycle in two hosts. The primary or definitive host is man. The mammals, like pigs, buffaloes, antelopes often act as reservoir hosts harbouring the parasite. The intermediate host is blood sucking insect called tsetse fly (Glossina palpalis). Life [...]
In this article we will discuss about:- 1. Systematic Position and Distribution of Trypanosoma 2. Polymorphic Forms of Trypanosomes 3. Pathogenic and Non-Pathogenic. The family of Trypanosomidae is the important groups among the Haemoflagellates. Members of this family, the Trypanosomes, are all parasitic and were originally parasites of the digestive canal of insects. Now, many are found in the blood [...]