Flashcards in Introduction to Parisitology Deck (26)
A smaller organism that lives on or in and at the expense of a larger organism called the host?
What is the role of the veterinarian in regards to Parasitology?
To equip with information on parasites you will need as a veterinarian in North America
-which cause disease
-which are zoonoses
-minimize impact on production (super important)
-treatments used daily in practice
-sustainable interventions to manage
3 main classes of parasites that can cause disease in humans?
Cysts (neurocysticercosis) in brain cause?
Epilepsy, blindness, madness and death
Diagnostic methods of parasites (SIS)
-Site of infection
-Size of parasite
Explain diagnostic methods?
-Understand the parasites
-Select the samples to collect
-Select appropriate diagnostic methods
Treatments and prevention of parasites?
-Sustainable management of the host
-Management of the environment
-Life cycle is used to determine treatment and prevention
Most puppies get hook worms by?
Example of an ectohost that is commonly found in cats and dogs?
The most common dermatological disease in dogs in the United States
Flea allergy demititus
Dirofilaria immitis causes?
heartworm (also visible in blood smear) transmitted by mosquitos
Most puppies are born with?
Round worms, transferred to them through the placenta
Phylum Nemathelminthes are commonly known as?
Phylum platyhelminthes is commonly known as?
What are the 2 classes?
Phylum Arthropods are comprised of these two classes and make up 80% of all animal species?
Subkingdom Protozoa are comprised of these 2 phylums?
-Free living parasite
-Alimentary canal (mouth or anus)
-Sexes usually separate
-Life cycle direct or indirect
Cestodes (tapeworms) characteristics?
-Flat body and no alimentary canal (they absorb everything instead)
-Scolex (head-holdfast organ)
-Strobila (body) with proglottids(segments of the body)
-Types of characteristic larval stages
-Oral and ventral suckers
-Indirect life cycle-molluscan IH
-Usually genitally independent
Examples of Arthropods?
Examples of Arachnids?
How to identify insects?
Adults: 3 pairs of legs
Head, thorax, abdomen
Identification of arachnids (ticks and mites)
Nymphs and adults: 4 pairs of legs
Larvae: 3 pairs of legs
Body: cephalo-thorax and abdomen
No antennae, but palps
Protozoa are uni or multicellular?
Unicellular (but still contain a true nucleus)