parasitology

Question 1

• • complete **
    1. plasmodium falciparum causes………
    2. plasmodium vivax causes………
    3. plasmodium ovale Causes………
    4. plasmodium malariae causes……….

Answer 1

1. malignant tertian malaria
2. Benign tertian malaria
   3.ovale tertian malaria
   4.Quartan malaria

Question 2

What are the Definitive Host (DH) , Intermidiate host (IH) and Resevoir Host (RH) of plasmodium

Answer 2

DH: FemaleAnophelous mosquito
IH : Humans
RH : Chimpanzee ** only for plasmodium malariae**

Note :Champanzee can be IH in case there is no human in the cycle

Question 3

What are the stages of erythrocytes schizogony

Answer 3

1. Ring Form
   2.trophozoite
   3.schizont——-》 Burst and releases merozoites
   4.gametocytes

Question 4

stages of sporogony cycle

Answer 4

1. Male gametocyte ( micro ) nucleus devides into 4-8 fragments by reduction division, then separate as microgametes
2. Female gametocyte ( macro ) mature into macrogamete by reduction division
3. The union of micro and macro gametes forms a zygote, which transforms into a motile ookinete
4. ookinete penetrate the wall of the gut and into the oocyst which mature into sporocyst containing Sporozoites
5. Sporocyst ruptures and sporozoites enters the body cavity and migrate into the salivary glands