《病原生物学（人体寄生虫学）》课程实验课件（英文）04 Ascaris Lumbricoides and Trichuris trichiura

Human ParasitologyDepartment of Pathogenic and ImmunologySHIHEZIUNIVERSITY

Human Parasitology Department of Pathogenic and Immunology Department of Pathogenic and Immunology SHIHEZI SHIHEZI UNIVERSITY

Ascaris Lumbricoides andTrichuris trichiura(WhipwormDepartmentofPathogenicand Immunology

Ascaris Lumbricoides and Trichuris trichiura ( Whipworm ) Department of Pathogenic and Immunology Department of Pathogenic and Immunology

Content. Watch TV.· Observation to pathologic specimen. Methods of the diagnosis: Direct fecalfilm.Individual observation:eggsDepartment of Pathogenic and Immunology

Content •Watch TV. •Observation to pathologic specimen. •Methods of the diagnosis: Direct fecal film. •Individual observation:eggs. Department of Pathogenic and Immunology Department of Pathogenic and Immunology

Requirements1.Study the morphological characters ofova and adultworms of Ascaris andWhipworm.2. Realize the life cycle of the worm3. Master the methods of the diagnosisDepartmentofPathogenicand Immunology

Requirements 1.Study the morphological characters of ova and adult worms of Ascaris and Whipworm. 2. Realize the life cycle of the worm. 3. Master the methods of the diagnosis. Department of Pathogenic and Immunology Department of Pathogenic and Immunology

Ascari s Adult wormDepartment of Pathogenicand Immunology

Ascari s Adult worm Department of Pathogenic and Immunology Department of Pathogenic and Immunology

Egg. 1. Fertilized eggs: broad oval in shape, brown in color, anaverage size 60 X 45umStout protein coat stained brown by bileShell is thicker and colourless with ascaroside and fertilizingmembraneThe content is a fertilized ovumNew-moon(crescent) shaped clear space (Freshly Passed From faeces

Egg • 1. Fertilized eggs: broad oval in shape, brown in color, an average size 60× 45µm. Stout protein coat stained brown by bile Shell is thicker and colourless with ascaroside and fertilizing membrane. The content is a fertilized ovum. New-moon(crescent) shaped clear space (Freshly Passed From faeces)

2. Unfertilized egg:Longer and slender in shapeThinner shellThe content is made of many refractable granules variousin size.without ascaroside , fertilizingmembrane and ovum

2. Unfertilized egg: Longer and slender in shape Thinner shell The content is made of many refractable granules various in size. without ascaroside , fertilizing membrane and ovum

3. Embryonated Eggs of AscarisEgg containing a larva, which willbe infective if ingestedDepartmentof Pathogenic and Immunology

3. Embryonated Eggs of Ascaris Egg containing a larva, which will be infective if ingested. Department of Pathogenic and Immunology Department of Pathogenic and Immunology

biliary ascariasisthe most common complication

biliary ascariasis the most common complication

Intestinal obstructionDepartmentofPathogenicand Immunology

Intestinal obstruction Department of Pathogenic and Immunology Department of Pathogenic and Immunology