Faculty of Allied Medical Sciences Parasitology (MLPR-201) fall 2013/2014
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Transcript of Faculty of Allied Medical Sciences Parasitology (MLPR-201) fall 2013/2014
Faculty of Allied Medical Faculty of Allied Medical SciencesSciences
ParasitologyParasitology(MLPR-201)(MLPR-201)
fall 2013/2014fall 2013/2014
kingdom : Protista (Protozoa)kingdom : Protista (Protozoa)
Dr. Hamdy Badie M. El-WakilProf. of Parasitology & Public Health .
Faculty of Allied Medical Sciences.Pharos University In Alexandria,Egypt
By the end of this lecture, students should understand the classification, pathogenicity, clinical importance and clinical features of kingdom : Protista (kingdom : Protista (Pathogenic Pathogenic Protozoa) .Protozoa) .
Hu
man
Para
sit
olo
gy
Medical
Helminthology
Medical
Protozoology
Medical
Arthropodology
• Class Nematoda• Class Trematoda• Class Cestoda• Class MetacanthocephalaClass Metacanthocephala
• Class Lobosea• Class Zoomastigophorea• Class Sporozoa• Class Ciliophora
• Class Insecta • Class Arachnida• Class Crustacea• Class Chilopoda
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kingdom : Protista (Protozoa)kingdom : Protista (Protozoa)
Only a few of the many tens of thousands of protozoa species are pathogenic for humans
1- Intestinal:1- Intestinal: Entamoeba histolytica (Ameba).
Giardia lamblia (Flagellate).
Cryptosporidium parvum (Sporozoan).
2- Urogenital:2- Urogenital: Trichomonas vaginalis.
3- Blood and tissues:3- Blood and tissues:
Plasmodium species (Sporozoan).
Toxoplasma gondii (Sporozoan).
Trypanosoma species (Flagellate).
Leishmania species (Flagellate).
(I) Pathogenic protozoa:(I) Pathogenic protozoa:
1- Phylum: Sarcomastigophora: (a) Subphylum: Sarcodina e.g. Amoeba
(b)Subphylum: Mastigophora e.g. Trypansoma Digestive and genital tracts Blood and tissues. 2- Phylum: Ciliophora (Ciliates): Balantidium coli
Intestinal parasite of man.
3- Phylum: Apicomplexa: Class: Sporozoa: Asexual and sexual generations (All are parasitic). (e.g. Malaria).
Amebas : Move by extending cytoplasmic projections.
Flagellates : Move by rotating whip – like flagella.
Ciliates : Move by synchronous beating of hair – like cilia.
Sporozoa : Generally have non-motile adult forms.
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ProtozoaProtozoa
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A.A.
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Intestinal InfectionsIntestinal Infections
There are three principal protozoal intestinal parasites: the ameba Entamoba histolytica, the flagellate, Giardia lamblia and several varieties of sporozoa, Cryptosporidium parvum. Each causes a dysentry which although similar, differs in the site of infection, the severity and secondary consequences.
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Entamoeba sp. (causing amoebiasis)
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Pathology (Invasion of the large intestine)Pathology (Invasion of the large intestine)
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ComplicationsComplications
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Entamoeba histolytica Entamoeba histolytica (causing amoebiasis)(causing amoebiasis)
21vulvitis
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Life Cycle of Balantidium coliBalantidium coli
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Complete the following sentences: Pathogenic protozoa could be intestinal Pathogenic protozoa could be intestinal
as……………….,……….. or………………. Like as……………….,……….. or………………. Like ……….and……………….or Blood and tissues, ……….and……………….or Blood and tissues, like……………………….,………………..and………….like……………………….,………………..and………….
Amebas : Move by………………while Flagellates Amebas : Move by………………while Flagellates
Move by…………………..Move by………………….. Entamoba histolytica, Giardia lamblia and, Entamoba histolytica, Giardia lamblia and,
Cryptosporidium parvum. Each causes a ………….Cryptosporidium parvum. Each causes a ………….
Group of students will be selected for an assignment topic ,one of the parasites that are studied in your course.
The following points should be covered in your assignment sheets:
(1) Classification Position:(2) Name of the parasite;(3)Description ( Morphological Characters in vivo): (4) Definitive (Final) Host:(5) Intermediate Host:(6) Mode Of Infection:(7) Infective Stage:-.(8) Habitat:- (9) Diagnostic Stage:- (10) Disease:- (11) life cycle
Schistosoma sppطه زغلول محمد خالد باسم
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