UNIT P11-12 Flashcards
Parasites are transmitted from one animal to another by
• ingestion
• Skin penetration
• Contact
• Predation
• Coitus
• Transplacental/Tranmammary transmission
single-celled organism, multiply in human host, Medical Protozoology
Phylum Protozoa-
multicellular worms, do not normally multiply in human host, medical Helminthology.
Phylum Platyhelminthes and Phylum Nemathelminthes-
Medical Entomology
Phylum Arthropoda -
may be inflicted by a parasite by means of pressure as it grows larger,
mechanical injury
in Plasmodium falciparum production of toxic substances may cause rigors and other symptoms.
Deleterious effect of toxic substances-
-parasite may produce disease by competing with the host for
nutrients
Deprivation of nutrients, fluids and metabolites