Flashcards in Introduction to Parisitology Deck (26)
Loading flashcards...
1
A smaller organism that lives on or in and at the expense of a larger organism called the host?
Parasite
2
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
-clinically relevant
-which are zoonoses
-diagnostic tools
-minimize impact on production (super important)
-treatments used daily in practice
-sustainable interventions to manage
3
3 main classes of parasites that can cause disease in humans?
-helminths
-ectoparasites
-protozoa
4
Cysts (neurocysticercosis) in brain cause?
Epilepsy, blindness, madness and death
5
Diagnostic methods of parasites (SIS)
-Host species
-Site of infection
-Size of parasite
6
Explain diagnostic methods?
-Understand the parasites
-Select the samples to collect
-Select appropriate diagnostic methods
7
Treatments and prevention of parasites?
-Parasiticides
-Sustainable management of the host
-Management of the environment
-Life cycle is used to determine treatment and prevention
8
Most puppies get hook worms by?
Transmammary
9
Example of an ectohost that is commonly found in cats and dogs?
Flea
10
The most common dermatological disease in dogs in the United States
Flea allergy demititus
11
Dirofilaria immitis causes?
heartworm (also visible in blood smear) transmitted by mosquitos
12
Most puppies are born with?
Round worms, transferred to them through the placenta
13
Phylum Nemathelminthes are commonly known as?
Roundworms
14
Phylum platyhelminthes is commonly known as?
What are the 2 classes?
Flat worms
(Class cestoda-tapeworms)
(Class trematoda-flukes)
15
Phylum Arthropods are comprised of these two classes and make up 80% of all animal species?
Class-Insecta
Class-Arachnida
16
Subkingdom Protozoa are comprised of these 2 phylums?
-Mastigophora
-Apicomplexa
17
Roundworm class?
Nematoda
18
Nematodes(roundworms) characteristics?
-Free living parasite
-Elongated
-Alimentary canal (mouth or anus)
-Sexes usually separate
-Life cycle direct or indirect
19
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)
-Each proglottid-hermaphroditic
-Indirect lifecycle
-Types of characteristic larval stages
20
Trematodes(flukes) characteristics?
-Dorso-ventrally flattened
-Leaf-like
-Oral and ventral suckers
-Indirect life cycle-molluscan IH
-Usually genitally independent
21
Examples of Arthropods?
-Flies
-Fleas
-Lice
-Bed bugs
22
Examples of Arachnids?
Ticks
Mites
23
How to identify insects?
Adults: 3 pairs of legs
Head, thorax, abdomen
Antenna
24
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
25
Protozoa are uni or multicellular?
Unicellular (but still contain a true nucleus)
26
