Medical Parasitology Classification of Parasites Parasites are Eukaryotes

Classification of Parasites • According to their anatomical habitat in human, they are classified

Classification of Parasites • According to their cellular structure: are classified into 2 groups:

Protozoa: • According to the body systems they are mainly classified into: 1. Haemopoietic

Classification of Protozoa • • • Haemopoietic parasites: 1. Plasmodium species. 2. Leishmania species.

Classification of Protozoa • • • Intestinal parasites: 1. Entamoeba histolytica. 2. Blantidium coli.

Classification of Protozoa • Genitourinary parasites: • Trichomonas vaginalis.

Classification of Helminthes • 1. Cestodes

Cestodes (tapeworms) • • • 1. Taenia saginata and Taenia solium. 2. Hymenolepis nana.

Nematodes (round worms) • • • Intestinal Nematodes Ascaris lumbricoides Hookworms Enterobius vermicularis Trichuris

Nematodes (round worms) • • Tissue Nematodes Wuchereria bancrofti Brugia malayi Brugia timori Loa

Trematodes (flukes) • • Schistosoma mansoni Schistosoma haematobium Schistosoma japonicum Hermaphroditic flukes

How to write the name of a parasite? • The name of the parasite

How to write the name of a parasite? Both names of the genus and

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Medical Parasitology Classification of Parasites

• Parasites are Eukaryotes

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)

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

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.

Classification of Protozoa • • • Haemopoietic parasites: 1. Plasmodium species. 2. Leishmania species. 3. Trypanosoma species. 4. Toxoplasma species.

Classification of Protozoa • • • Intestinal parasites: 1. Entamoeba histolytica. 2. Blantidium coli. 3. Giardia lamblia. 4. Cryptosporidium parvum. 5. Isospora belli.

Classification of Protozoa • Genitourinary parasites: • Trichomonas vaginalis.

Classification of Helminthes • 1. Cestodes

Cestodes (tapeworms) • • • 1. Taenia saginata and Taenia solium. 2. Hymenolepis nana. 3. Diphyllobothrium latum. 4. Dipylidium caninum. 5. Echinococcus granulosus. 6. Echinococcus multilocularis.

Cestodes

Nematodes (round worms) • • • Intestinal Nematodes Ascaris lumbricoides Hookworms Enterobius vermicularis Trichuris trichiura

Ascaris lumbricoides (adult)

Nematodes (round worms) • • Tissue Nematodes Wuchereria bancrofti Brugia malayi Brugia timori Loa loa Onchocerca volvulus Dracunculus medinensis Trchinella spiralis

Trematodes (flukes) • • Schistosoma mansoni Schistosoma haematobium Schistosoma japonicum Hermaphroditic flukes

Adult Schistosoma (male and Female)

Fasciolopsis buski • Adult worm

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).

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 •