The following points highlight the four main parasitic adaptations of helminths. The adaptations are: 1. Morphological Adaptations 2. Physiological Adaptations 3. Life Cycle Adaptations 4. Immunological Adaptations. 1. Morphological Adaptations: The Helminths, though are of lower grade of organisms, show structural modifications or adaptations along two lines: (a) Degeneration or loss of organs or systems; (b) Attainment of new organs. [...]
Giardia intestinalis inhabiting in the lumen of intestine is a cosmopolitan parasite causing chronic diarrhoea of acute type and leads to malabsorption in the intestine. This Giardia infection retards growth and development of children. The disease has been referred as a Giardiasis and it also has been indicated as a Zoonosis. Treatment of Giardiasis: i. Atebrin and acranil have [...]
Difference between Entamoeba histolytica and Entamoeba coli: Difference # E. histolytica: A. Trophozoite stage: (i) Fairly abundant in amoebic dysentery stools. (ii) The size varies from 10-30µ (iii) The outline shows finger like pseudopodia. (iv) Actively motile in nature. (v) Cytoplasm: Ectoplasm—prominent; Endoplasm—finely granular with ingested RBCs Vacuoles—scanty, spherical and defined. Nucleus: Nuclear membrane uniformly stained with chromatin; karyosome is [...]