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Classification of Parasites
Medical Parasitology Classification of Parasites
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Parasites are Eukaryotes
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Classification of Parasites
According to their anatomical habitat in human, they are classified into also 2 groups: 1. Ectoparasites ( Parasitizing the skin surface). 2. Endoparasites (Parasitizing the internal tissues)
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Classification of Parasites
According to their cellular structure: are classified into 2 groups:- 1. Protozoa (Each one is unicellular=composed of one cell). 2. Metazoa (Multicellular= Each one is composed of many cells). NB: Protozoa = Plural, Protozoan= Singular Metazoa = Plural, Metazoan= Singular
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Protozoa: According to the body systems they are mainly classified into: 1. Haemopoietic parasites. 2. Intestinal parasites. 3. Genitourinary parasites. 4. Cutaneous parasites. 5. Others.
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Classification of Protozoa
Haemopoietic parasites: 1. Plasmodium species. 2. Leishmania species. 3. Trypanosoma species. 4. Toxoplasma species.
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Classification of Protozoa
Intestinal parasites: 1. Entamoeba histolytica. 2. Blantidium coli. 3. Giardia lamblia. 4. Cryptosporidium parvum. 5. Isospora belli.
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Classification of Protozoa
Genitourinary parasites: Trichomonas vaginalis.
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Classification of Helminthes
1. Cestodes
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Cestodes (tapeworms) 1. Taenia saginata and Taenia solium.
2. Hymenolepis nana. 3. Diphyllobothrium latum. 4. Dipylidium caninum. 5. Echinococcus granulosus. 6. Echinococcus multilocularis.
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Cestodes
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Nematodes (round worms)
Intestinal Nematodes Ascaris lumbricoides Hookworms Enterobius vermicularis Trichuris trichiura
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Ascaris lumbricoides (adult)
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Nematodes (round worms)
Tissue Nematodes Wuchereria bancrofti Brugia malayi Brugia timori Loa loa Onchocerca volvulus Dracunculus medinensis Trchinella spiralis
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Trematodes (flukes) Schistosoma mansoni Schistosoma haematobium
Schistosoma japonicum Hermaphroditic flukes
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Adult Schistosoma (male and Female)
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Fasciolopsis buski Adult worm
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How to write the name of a parasite?
The name of the parasite is written including the genus and the species ( e.g Plasmodium falciparum). The first letter in the genus name is written as capital while the first letter in the species name is written as small letter. (Plasmodium falciparum).
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How to write the name of a parasite?
Both names of the genus and the species are either underlined or written in italic. Toxoplasma gondii = underlined. or: Toxoplasma gondii= italic
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