MidTerm Flashcards
1
Q
Aberrant parasite
A
Erratic parasite
2
Q
Acaricides
A
Drugs that kill acarides (mites)
3
Q
Annelids
A
Segmented parasites
4
Q
Anthelmintics
A
Drugs that kill helminths
5
Q
Antiprotozoals
A
Drugs that kill protozoans
6
Q
Definitive host
A
Host that houses parasite in parasites mature, adult, sexual stage
7
Q
Dioecious
A
Separate sexes
8
Q
Endoparasitism
A
Parasite within the body
9
Q
Euryxenous parasite
A
Parasite that affects multiple species
10
Q
Facultative parasite
A
Parasite that can live without a host
11
Q
Hirudineans
A
Leeches
12
Q
Hydatid Cyst
A
Cyst containing eggs in their own spot/separated by others
13
Q
Infection
A
Parasite within body causes this
14
Q
Infestation
A
parasite outside body causes this
15
Q
Intermediate host
A
Host that holds parasite during larval stage
16
Q
Obligatory parasite
A
parasite needs a host
17
Q
Operculated ovum
A
Shaped like stewies head; oval, has operculums
18
Q
Prepatent period
A
Time where host is infected until time able to diagnose
19
Q
Alimentary canal
A
GI tract
20
Q
Proboscis
A
Spiny attachment organs of acanthocephalans
21
Q
Rostellum
A
On scolex of cestodes
22
Q
Occult blood
A
Blood in feces
23
Q
Schistosome
A
Blood flukes
24
Q
Scolex
A
Head of cestode
25
Hirudo medicinalis
Leech used for medicinal purposes
26
Name the five types of symbiotic relationships and give an example for each:
- Mutualism: Cow and bacteria in rumen
- Parasitism: Dog having heartworm
- Comensalism: Shark and cleaner fish
- Predator/Prey: Zebra being killed by lion
- Phoerisis: Cow and fly (carrying pink eye from cow to cow)
27
Explain difference between infection nd infestation
Infection: When host has an endoparasite
Infestation: When host has an ectoparasite
28
Explain difference between facultative and obligatory parasites
Facultative: Free living parasite, does not need a host to survive
Obligatory: Parasite needs host to survive
29
Explain difference between homoxenous and euryxenous parasites
Homoxenous: Parasite that can only affect one species
Euryxenous: Parasite that can effect multiple species
30
List the 7 Linnaean classification in order:
Kingdom, phylum, class, order, family, genus, species
31
In what kingdom do most parasites of domestic animals belong?
Animalia
32
Flatworms belong in what phylum?
Platyhelminthes
33
Roundworms belong in what phylum?
Nematoda
34
Thorn0headed worms belong in what phylum?
Acanthocephala
35
Spiders and mites belong in what phylum?
Arthropoda
36
Kingdom, phylum, class for tapeworms
Animalia, Platyhelminthes, cestoda
37
Since tapeworm infections are treated similarly, why is it important to identify which type of tapeworm infection an aimal has?
So we know how the animal got the parasite and how to stop it from happening again
38
Trichuris vulpis
Canine whipworm
39
Intermediate host for Dipylidium caninum
Flea
40
Life cycle of D. immitis
L1, (molts), L2, (molts), ingested by host, L3, parasite produces eggs
41
The most powerful anticoagulant ____ known is secreted into the bite wound of ______ to keep the host bleeding as the animal feeds
Hirudin, leeches
42
What is the benefit of medicinalleeches?
For them to secrete hirudin, also to allow and aid the blood to circulate the body to new body parts
43
T/F
| Veterinarians and techs are responsible for many aspects of human health and disease prevention
True
44
T/F
| A parasite can cause parasitiasis in some animals with a low parasite burden or number
True
45
T/F
| A parasite may cause parasitosis with a high parasite burden
True
46
T/F
All parasites can have obligatory stage in their development where they need a host and some life stages can be nonparaistic
False
47
T/F
| With some parasites, only the female adult is paraisitic while free living males and femals are nonparasitic
True
48
T/F
| Novice veterinary technician students always mistake air bubbles on a fecal flotation slide for a parasite egg
False
49
T/F
| Some parasites can serve as intermediate hosts for other parasites as well as being parasites themselves
True
50
T/F
| Most parasites of domestic animals belong in the kingdom protista
False
51
T/F
| Monogenetic flukes are commonly seen in veterinary practice
False
52
T/F
Pseudotapeworms use microscopic aquatic crustaceans and the musculature of fish and reptiles as intermediate hosts for part of their life cycle
True
53
T/F
| Annelids are the largest group of helminthes that parasitize domesticated animals
False
54
T/F
| The spiny proboscis on Acanthocephalans is used as an organ of motion or movement
False; attachment
55
T/F
| Most of the ectoparasites seen in the veterinary profession belong to the phylum insecta
False
56
T/F
| Nematodes are the most numerous and diverse group of animals on Earth
True
57
T/F
| Nematodes have a pseudocoelom
True
58
T/F
| Whipworms produce fewer eggs than nematodes
True
59
T/F
| Whipworms only release eggs every third day
True
60
T/F
| In dog feces, you will commonly find the larvae, rather than ova, of Strongyloides species
True
61
T/F
| Ideally, centrifugal flotation should be used to better float whipworm ova
True
62
T/F
| Feline heartworm disease produces the same hallmark signs observed in canine heartworm disease
False
63
T/F
| Acanthocheilonema reconditum is transmitted to the dog by ingestion of the cat flea, Ctenochalides felis
True
64
T/F
| The suckers on Cestodes are associated with food intake
False
65
T/F
| The life cycle of the pseudotape worm is more simplistic than that of the true tapeworm or Eucestode
False
66
T/F
| Taenid eggs cannot be found on standard fecal flotation
False
67
T/F
| Digenetic trematodes do not possess an anus
True
68
T/F
| Fasciola hepatica is the most studied fluke affecting domestic livestock
True
69
T/F
| The eggs of the lung fluke can be found on fecal sedimentation of feces or sputum
True
70
T/F
| Only two species of acanthocephalans are important to veterinary medicine
True
71
T/F
| Leeches have segmented bodies with no hard exoskeleton
True
72
T/F
| Medicinal leeches can consume blood up to five times their own weight
True
73
T/F
| Medicinal leeches are most often though of in conjunction with bloodletting throughout history
True
74
T/F
| Land leeches are found on the surface of trees and grasses
True
