Intro To Parasitology Flashcards
How are larvae encased?
In a tough shell or membrane to survive unfavorable conditions
Sources of parasite transmission?
Soil, food, water, stool, other animals
Methods of parasite entry to the host?
Transplacental, transmammary, ingestion of larvae, ingestion of the host carrying the parasite, skin penetration, blood contact
Effects parasites can have on the host?
Irritation, disease transmission, anemia, tissue damage, mechanical blockage, zoonotic transmission, Immune system activation
Supports the sexually mature form of the parasite?
Primary host
Supports the asexual stage of larval form of the parasite.
Intermediate host
Also called the carrier or transport host?
Carrier or transport host
How can we control parasite transfer?
Sanitation, heat sterilization, refrigeration or freezing, elimination of the host, improved nutrition of the host, owner education
Can exist free living or in or on host.
Facultative parasite
Parasite that must have a host to live or exist.
Obligatory parasite
Accidental parasite found in or on a temporary host.
Incidental parasite
Visits the host then leaves.
Intermittent
Parasite that live inside of the host.
Endoparasites
Parasites that live outside/on the host.
Ectoparasites
Parasite that spends their entire life on or in a host.
Permanent parasite
Where parasite lives.
Habitat
Geographical site.
Distribution
How a parasite is passed.
Transmission
A true round worm.
Nematode
Any parasite that is segmented (ie tapeworms)
Cestodes
Flukes.
Trematodes
Singled celled parasites living in the blood, GI tract, or within another cell.
Protozoa
Transmits the parasite to an uninflected host.
Vector
An agent that expels or destroys internal parasites.
Anthelmintics
