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VMS2004 Pathology of the Cardiovascular, Respiratory and Musculoskeletal Systems > MSK Parasites > Flashcards

MSK Parasites Flashcards

1
Q

What are the helminths of the MSK? (2)

A
  • Tichinella (roundworm)
  • Raenia spp. (tapeworm)
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2
Q

What are the protozoa of the MSK? (2)

A
  • Sarcocystis spp.
  • Toxoplasma gondii
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3
Q

What is Trichinella? (3)

A
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4
Q

What is the most common species of Trichinella?

A

T. spiralis - host = domestic and wild animals, domestic pigs, wild board and horses = source of human infection, cosmopolitan location

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5
Q

Trichinella - life cycle (7)

A
  1. Ingestion of undercooked meat by humans = dead-end host, don’t see animals feeding on humans, so no further transmission
  2. Larva released in SI
  3. Adults in SI
  4. Larva deposited in mucosa
  5. Encysted larva in striated mucle
  6. Sylvatic cycle (predation/scavenging)
  7. Domestic cycle (meat scraps of rodents/cannibalism) - farmed animals (pigs in Europe)
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6
Q

Trichinella - life stages (5)

A
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7
Q

Trichinella species - hosts, source of human infection and location? (8)

A
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8
Q

Trichinella - epidemiology + transmission in animals (6)

A
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9
Q

Trichinella - epidemiology and transmission in humans (6)

A
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10
Q

Trichinella - clinical consequences of infection in animals (2)

A
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11
Q

Trichinella - diagnosis in animals (5)

A
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12
Q

Trichinella - other diagnostic methods (2)

A
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13
Q

Trichinella - control and prevention (5)

A
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14
Q

Trichinella saginata - definitive host, intermediate host, metacestode location, metacestode name

A
  • Human
  • Cow
  • Muscle
  • Cysticercus bovis
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15
Q

Trichinella solium - definitive host, intermediate host, metacestode location, metacestode name

A
  • Human
  • Pig, human
  • Muscle, brain
  • Cystercercus cellulosae
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16
Q

Trichinella ovis - definitive host, intermediate host, metacestode location, metacestode name

A
  • Dog
  • Sheep
  • Muscle
  • Cysticercus ovis
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17
Q

Taenia adult morphology (3)

A
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18
Q

Taenia - general features of epidemiology (6)

A
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19
Q

Taenia saginata life cycle (6)

A
  1. Cow (intermediate host) ingests embryonated eggs, hatch, oncospheres migrate to tissues, develop to cysticerci
  2. Cysterceri (in muscle tissue) are ingested with raw or undercooked beef, humans = definitive host
  3. Cysticeri released from muscle in stomach
  4. Worms mature + live in SI
  5. Scolex contains four suckers
  6. Proglottids pass in faeces
20
Q

What is cysticercus bovis (2)

21
Q

Taenia saginata - epidemiology in developing countries (5)

22
Q

Taenia saginata epidemiology - Europe (7)

23
Q

Prevalence of bovine cysticercosis in Europe and the UK

24
Q

Taenia solium life cycle

25
Q

Countries and areas at risk of human cysticercosis

26
Q

Taenia solium - epidemiology (5)

27
Q

Porcine cysticercosis cases in Europe

28
Q

Taeniasis - disease in humans (3)

29
Q

Taenia solium juveniles - disease in intermediate host (humans) (3)

30
Q

Impact of cysticercosis in animals (3)

31
Q

Taeniasis - diagnosis (5)

32
Q

Cysticercosis - diagnosis (6)

33
Q

Taeniasis + cysticercosis - control (7)

34
Q

What is Taenia ovis I? (7)

35
Q

What is Taenia ovis II? (5)

36
Q

What are Sarcocystis? (7)

37
Q

Sarcocystis - biology and epidemiology (4)

38
Q

Sarcocystis species, intermediate host, definitive host, pathogenic intermediate host, pathogenic definitive host (don’t need to learn all)

39
Q

Sarcocystis life cycle (6)

40
Q

Sarcocystis - histopathology

41
Q

What are the sarcocystosis pathogenic species (3)

A

S. bovicanis, S. ovicanis, S. suicanis

42
Q

Sarcocystosis in domestic animals (8)

43
Q

Sarcocystosis - pathogenesis and lesions (6)

44
Q

Sarcocystosis - diagnosis (5)

45
Q

Sarcocystis - control in domestic animals (5)

46
Q

What is Sarcocystis suihominis? (4)

47
Q

Summary of MSK parasites (7)

VMS2004 Pathology of the Cardiovascular, Respiratory and Musculoskeletal Systems (39 decks)

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