Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

RUSVM Parasitology > Cestodes > Flashcards

Cestodes Flashcards

1
Q

What are the general characteristics of cestodes?

A 
Flat body and no alimentary canal 
Nutrients absorbed through tegument 
Scolex (head) 
Strobila (body) with proglottid 
Hermaphroditic 
Indirect life cycle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the infection site of adult tapeworms?

A

Small intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the three differences between cyclophylliea and pseudophyllidea?

A

Cyclophyllidea: 1 IH, scolex with suckers, egg with oncopshere

Pseudophyllidea: 2IH, scolex with bothria, egg with oncosphere and cilia for motility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Common name of Dipylidium caninum?

A

Flea tapeworm, double-pore tapeworm, cucumber tapeworm , dog tapeworm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Final host of Diplylidium caninum?

A

Cat
Dog
Human

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Intermediate host to Dipylidium caninum?

A

Flea and louse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Identify

Dog/cat

Fresh segment looking like a cucumber seed in the bedding
Dried segment like a grain of rice

A

Dipylidium caninum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What cestode of dogs and cats produces eggs in packets that are ingested by a flea?

A

Dipylidium caninum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the infective stage of Dipylidium caninum?

A

Cysticercoid in flea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the PPP of Dipylidum caninum?

A

3wks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the pathogenesis and signs of a Dipylidium caninum infection?

A

Adults are usually non pathogenic

Excessive grooming->fleas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the diagnostic methods for Dipylidium caninum?

A

Segments

Adhesive/scotch tape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the fowl cestodes?

A

Choanotaenia and Raillientina spp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the host to Choanotaenia spp?

A

Domestic fowl and wild fowl

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Site of infection of fowl cestodes

A

Small intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Intermediate host os fowl cestodes?

A

Arthropoda-ant, bottle, houseflies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the infective stage of fowl cestodes?

A

Cystercercoid in arthropod

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the pathogenesis of Choanotaenia and Raillietina spp?

A

Fowl cestode

Choanotaenia- pathogenic in large numbers

Raillietinea spp- chronic infection causes reduced growth, emaciation and weakness -> nodular tapeworm disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the most reliable method of diagnosis or Choanotaenia and Raillietinea spp?

A

Necropsy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are the equine cestodes? What one is more common?

A

Anoplocephala perfoliata -more common

Anoplocephala magna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Identify

Equine
Short broad, 4cm
Rounded scolex with lappets

A

A. Perfoliata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Identify

Equine
Large cestode up to 80cm
No lappets

A

A. Magna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Fecal flotation from equine
Eggs 80um, irregular shape (trangualr to trapezoidal)
Embryo with pyriform apparatus

A

Anoplocephala spp.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is the IH to Anoplocephala spp?

A

Orbatid mites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the PPP of Anoplocephala spp?

A

1-2months

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is the pathogenesis of Anoplocephala perfoliata

?

A

Heavy infection-> ulceration and ill health
Localized near iliocecal valve-> partial occlusion of valve
Intussusception

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Diagnosis of Anoplocephala spp?

A

Centrifuge and float eggs
ELISA
Sedimentation test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is the ruminant cestode spp?

A

Moniezia spp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Common name of Moniezia spp?

A

Milk tapeworm
Double pored ruminant tapeworm
Sheep tapeworm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What are the final hosts of Moniezia spp?

A

Sheep, goat, cattle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Intermediate host of Moniezia ?

A

Orbatid mite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Identify

Ruminant
Adult- 2meters with unarmed scolex with suckers
Eggs triangular 60um

A

Moniezia spp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What is the ppp of the equine and ruminant cestodes?

A

1-2month

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What is the larval stage of Taenia spp?

A

Cysticercus

Except t. Taeniformis -> strobilocerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

What is the general life cycle of Taenia spp?

A

Definitive host (cat, dog, human)-> proglottids in feces -> eggs, consumed by intermediate host (rodent, rabbit, livestock, and human)-> cystercurcus -> DH consumes IH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

What Taenia spp has an armed scolex?

A

Taenia pisiformis

37
Q

Humans serve as intermediate host to what Taenia spp?

A

T. Crassiceps

T. Solium

38
Q

Humans serve as the final host to what Taenia spp??

A

T. Saginata

T. Solium

39
Q

What is the larval stage of T. Taeniaeformis and intermediate host

A

Strobilocercus

Rodent

40
Q

What is the common name of Taenia saginata?

A

Beef tapeworm and Pearly beef

41
Q

What is the final host of Taenia saginata?

A

Human

42
Q

What is the intermediate host of Taenia saginata?

A

Bovine

43
Q

Identify

Human
Unarmed scolex with 4 suckers
Taeniid egg

A

T. Saginata

44
Q

What is the site of infection for T. Saginata in its definitive and intermediate host?

A

DH: small intestine
IH: striated muscle

45
Q

What is the diagnosis for T. Saginata

A

Meat inspection

Serology- antigen tests

46
Q

Treatment and prevention of T. Saginata?

A 
Praziquantel 
Education 
Sewage treatment 
Cook meat throughly 
Freeze meat
Hygiene and sanitation
47
Q

What parasite causes neurocyticercosis ?

A

Taenia solium

48
Q

What are the host to Taenia solium?

A

Pig, dog, and human

49
Q

Common name of Taenia solium

A

Pork tapeworm, pearly/measly pork

50
Q

What taenia spp has 4 suckers with a double row of hooklets?

A

Taenia solium

51
Q

What is the distribution of Taenia solium?

A

Pork raising/ consuming areas
Associated with poverty
Spread by people/pig movement

Free ranging pigs consume human feces

52
Q

What are the clinical signs of Taenia solium?

A

Pigs- no clinical signs

Human
Taeniosis- intestinal discomfort
Neurocysticercosis- seizures, headache, hydrocephalus, blindness, dementia, and death

Subcutaneous cysts, within the anterior chamber of the eye

53
Q

What are the diagnostic methods for T. Solium?

A 
Serology and PCR
Lingual exam in pig
MRI/CT scan in human 
Biopsy of nodules 
Fecal exam for eggs
54
Q

What is the treatment and prevention of Taenia solium

A 
Anthelmitics 
Pig vaccine
Pig husbandry 
Meat inspection 
Hygiene and sanitation 
Education
55
Q

What is the common name for Echinococcus granulosus diesease?

A

Hydatid disease

Cystic echinococosis

56
Q

What is the final host of echinococcus granulosus?

A

Dog, wild candid, cat

57
Q

Intermediate host to echinococcus granulosus?

A

Livestock and humans

Most important is the Dog-sheep life cycle

58
Q

Identify

Dog
Adult small less than 6mm with few proglottids
Larva form hydatid cyst in liver or lungs
Taeniid eggs

A

Echinococcus granulosus

59
Q

What is the larval stage of Echinococcus spp?

A

Hydatid cyst

Brood capsule-> protoscolex

60
Q

What is the site of infection of Echinococcus granulosus?

A

Small intestine of dog

IH: hydatid cyst in liver, lungs, bones, and brain …. basically all the places

61
Q

What stage of echinococcus granulosus is pathogenic to humans?

A

Hydatid

62
Q

What are the methods of diagnosis for Echinococcus granulosus?

A

Purgation or coproantigen test in dog
Examine organs at slaughtered livestock
Ultrasound and imaging

63
Q

What is the treatment and prevention of Echinococcus granulosus?

A

Anthelmitic
Do not feed dog infected carcass
Hygiene
Vaccine

64
Q

What is the common name for Echinococcus multilocularis disease?

A

Alveolar echinococcosis

65
Q

What is the distribution of Echinococcus multiloculars?

A

Northern hemisphere

66
Q

What is the final host to Echinococcus multilocularis?

A

Wild canid and domestic dog

67
Q

What is the intermediate host to Echinococcus multilocularis?

A

Rodent, lagomorph, and human

68
Q

What is the site of infection of Echinoccus multilocularis?

A

DH: small intestine
IH: alveolar hydatids in liver -> metastasis to other organs

69
Q

What are the species of psueodphyllidea?

A

Diphyllobothrium latum

Spirometra spp

70
Q

What is the common name of Diphyllobothrium latum?

A

Fish or broad tapeworm

71
Q

What is the final host of Diphyllobothrium latum?

A

Human and fish eating mammals

72
Q

What is the intermediate host to Diphyllobthrium latum?

A

Copepod crustacean and freshwater fish

73
Q 
Identify 
Fish eating mammals
Scolex with bothria 
Up to 12m 
Square shaped proglottids
A

Diphyllobothrium latum

74
Q

What is the PPP of Diphyllobothrium latum?

A

5-6wks

75
Q

Bothria

A

Elongated muscular groove on scolex used for attachment to host tissue

76
Q

Define coracidium?

A

Cililated oncosphere

77
Q

Define procercoid

A

First parasitic larval stage of pseudophyllidea cestode -> infect copepod

78
Q

Define plerocercoid?

A

Second parasitic larval stage of pseudophyllidea cestodes infecting fish

79
Q

What is the pathogenesis of Diphyllobothrium latum?

A

Most nonsymptomatic

Abdominal discomfort, weight loss, vomiting, diarrhea
Macrocyclic anemia because uptake of Vit B12 from intestine
Intestinal obstruction or gall bladder

80
Q

What is the treatment and prevention of Diphyllobothrium latum?

A

Cestocidals
In endemic areas, avoid eating raw or undercooked fish
Prevent defecatation by fresh water

81
Q

What is the common name os Spirometra spp?

A

Zipperworm

82
Q

What is the disease in humans caused by Spirometra?

A

Sparaganosis

83
Q

Final host of Spirometra spp?

A

Dog, cat, lynx, bobcat, raccoon

84
Q

Intermediate host of Spirometra spp?

A

Crustacean

Fish, reptile, amphibian, bird, rodent, human

85
Q

Identify

Dog, cat, lynx, bobcat
Scolex with bothria
Repro organs at center of proglottid

A

Spirometra spp

86
Q

What is the PPP of Spirometra?

A

2-4wks

87
Q

Human sparaganosis infective stage?

A

2nd intermediate host if ingest copepod or PH is ingest the fish (2nd IH)

Migration through the body

88
Q

What is the pathogenesis of human sparaganosis ?

A

Migration through the body

Subcutaneous tissue, breast, eye, urinary tract, pleural cavity, abdominal viscera, CNS

89
Q

What is the treatment and prevention of Spirometra spp?

A

Cestocide in final host
Surgical removal from humans

Avoid contaminated water and eating IH in those areas

RUSVM Parasitology (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions