Download - First Lecture-general Pro to Zoology
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20081 Dr.Faiza Habib
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2008Dr.Faiza Habib2
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MARKS: 140 MARKS FINAL EXAM. 20 Practical FINAL EXAM 20 PRACTICAL WORK AND ACTIVITY 20 MID-YEAR EXAM (7th week) ----------- 200 MARKS TOTALBOOKS: THREE BOOKS (in one pack) 1- lectures book. 2- Practical and activity book. 3- Questions book
20083 Dr.Faiza Habib
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20084 Dr.Faiza Habib
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PARASITE
An organism that:
1 - Lives in or on and -Takes its nourishment from another organism.
-Causes him harm.
20085 Dr.Faiza Habib
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20086 Dr.Faiza Habib
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PARASITE
in Greek PARA = along sides of SITOS = food
20087 Dr.Faiza Habib
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20088 Dr.Faiza Habib
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DEFINITIVE HOST
It is the host which harbors the adult
stage of the parasite or its sexually
reproducing forms.20089 Dr.Faiza Habib
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INTERMEDIATE HOST
It is the host which harbors the larval e
host stage of the parasite or its
asexually reproducing forms.
200810 Dr.Faiza Habib
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RESERVOIR HOST
It is the ANIMAL which harbors the same species and stages as humans. 200811 Dr.Faiza Habib
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VECTOR
It is an arthropod that transmits parasites
from one host to another. 200812 Dr.Faiza Habib
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OBLIGATORY PARASITE
200813 Dr.Faiza Habib
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FACULTATIVE PARASITE
200814 Dr.Faiza Habib
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PERMANENT PARASITE
200815 Dr.Faiza Habib
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TEMPORARY PARASITE
200816 Dr.Faiza Habib
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ECTO -PARASITE
200817 Dr.Faiza Habib
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ENDO -PARASITE
200818 Dr.Faiza Habib
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ACCIDENTAL PARASITE
200819 Dr.Faiza Habib
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OPPURTINISTIC PARASITE
200820 Dr.Faiza Habib
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PARASITIC DISEASES
=
200821 Dr.Faiza Habib
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1- Locate areas in the world where infection by the parasite exists (Geographical distribution)2- Describe the morphology of the different stages.3- Name the definitive, intermediate hosts and reservoir hosts if present.4- Know the habitat i.e.where does it live inside the host.5- Describe its life cycle.6- Understand the pathogenesis and pathology.7- Predict the clinical manifestations of its infection.8- Apply proper method/s of diagnosis.9- Prescribe the proper treatment9- Take parts in prevention and control.
Aims and objectives of studying MEDICAL PARASITOLOGY:
Things that must be known about each parasite, i.e.
By the end of this course you must:
200822 Dr.Faiza Habib
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200823 Dr.Faiza Habib
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One-celled Organism
in Greek proto = first zoa = animals
200824 Dr.Faiza Habib
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EUKARYOTIC ORGANISM
CAPABLE OF PERFORMING ALL VITAL FUNCTIONS OF METAZOAN ORGANISMS
DESCRIPTION
200825 Dr.Faiza Habib
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NUCLEUS
CYTOPLASM
STRUCTURE
200826 Dr.Faiza Habib
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NUCLEUS
STRUCTURE
Reticular network
Nuclear sap
May Be:• One or More
• Compact or Vesicular
200827 Dr.Faiza Habib
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CYTOPLASM
200828 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
Diffusion through body surface
Active contribution of pseudopodia, falgella and cilia
Giardia
Entamoeba
200829 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
Digestive enzymes
Toxins
Antigens
…….etc.
200831 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
200832 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOATo overcome unfavorable conditions outside the host.
To protect the organisms during passage in the GITWhen conditions become favorable ex-cystation takes place.
200833 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
200834 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
i.e.Exchange of nuclear matter
i.e. fusion of male and female gametocytes to form zygote
200835 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
200836 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
200837 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
200838 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
200839 Dr.Faiza Habib
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PHYSIOLOGY OF PROTOZOA
200840 Dr.Faiza Habib
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2008 - 2009200841 Dr.Faiza Habib