Medical Parasitology Visual Notes | Life Cycles Made Easy | Exam Revision

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1. Diagram of the life cycle of which parasite is shown in the figure?

Write the species name of the parasite. Name the stages of development

indicated by numbers 1-6




Life cycle of Entamoeba histolytica in a patient with amoebiasis

1 - metacystic development;

2 - translucent form;

3 - pre-cystic form;

4 - cysts;

5 - fabric forms;
6 - large vegetative

form (erythrophage);

7 - erythrocyte

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2. Diagram of the life cycle of which parasite is shown in the figure?

Write the species name of the parasite. Name the stages of development

indicated by the numbers 1, 4, 5, 10, 17




Life cycle of the malaria parasite Plasmodium malariae

1,2- sporozoites penetrating the cells of the blood vessels of the liver
person;

3, 4 - merogony (schizogony) (formation of merozoites);

5- penetration of the merozoite into the erythrocyte;

6-9- growth of merozoite and merogony (schizogony);

10 - release of merozoites from the erythrocyte (then the erythrocyte cycle is repeated);



11,12 - development of a macrogametocyte;

11a, 12b - development of a microgametocyte;

13 - macrogamete; 14- microgametocyte;

15- formation of microgametes;

16- copulation of gametes;

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17 - zygote;

18 - ookineta;

19 - penetration of the ookinete through the wall of the mosquito's stomach;

20 - transformation of the ookinete into an oocyst;

21-23 - growth of oocyst with the formation of sporozoites;

24 - release of sporozoites from the oocyst into the hemolymph of the mosquito;

25 - sporozoites that have penetrated into the salivary glands of a mosquito.