Brainscape's Knowledge GenomeTM

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


See full index

VPARA 412a (Veterinary Helminthology) > Family: Schistosomatidae > Flashcards

Family: Schistosomatidae Flashcards

1
Q

Scientific Name of blood flukes

A

Schistosomatidae

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

Common name of Schistosomatidae

A

Blood flukes

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

Schistosomatidae “blood flukes”

A

• cylindrical
• unisexual
• inhabit the blood vessels
• female is slender and longer, male is much broader
• eggs are non-operculated
• Cercariae are furcocercous
• Cercariae do not encyst

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

facilitate mating process. female is carried by the male during copulation by means of a ventral groove known as?

A

gynaecophoric canal

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

No redia, has 2 generation of sporocyst

A

Schistosoma japonicum

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

Final host of Schistosoma

A

man and domestic animals (ruminants, horse, dog, cat, pig, rabbit and rat)

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

Intermediate host of Schistosoma japonicum (phil)

A

Oncomelania hupensis quadrasii

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

Intermediate host of Schistosoma japonicum (japan)

A

Oncomelania nosophora

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

Intermediate host of Schistosoma japonicum (china)

A

Oncomelania hupensis

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

Intermediate host of Schistosoma japonicum (Formosa)

A

Oncomelania formosanum

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

Concomitant Immunity possible with major escape mechanisms as;

A

✓ antigenic mimicry
✓ immunosuppression
✓ Isotypic selection

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

flukes acquire a masking coat of host molecules, thus disguising their non-self character

A

antigenic mimicry

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

release of worm-derived neuropeptides

A

immunosuppression

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

resistance dependent on balance between protective and blocking effects or specific antibodies

A

isotypic selection

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

young flukes

A

schistosomula

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

common name of schistosomula

A

young flukes

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

Mode of transmission for Schistosomosis

A

• skin penetration
• ingestion of contaminated water
• prenatal infection

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

Scientific name of Snail fever, Bilharziasis or Katayama Disease

A

Schistosomosis

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

common name of schistosomosis

A

snail fever, Bilharziasis, katayama disease

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

Schistosomosis disease has three stages;

A
  1. Developmental period
  2. Period of active oviposition
  3. Period of proliferation and repair
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Developmental period

A

from skin penetration to mature ova-producing adult worms

• DERMATITIS and PUSTULE FORMATION due to cercarial penetration
• Migration of schistosomula produce pneumonia, nephritis and hemorrhage

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

Period of active oviposition and extrusion

A

ulceration and necrosis of the intestine

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

Period of proliferation and repair

A

fibrosis

24
Q

other name of schistosomosis

A

Bilharziosis

25
Q

Two clinical syndromes of Schistosomosis

A
  1. Acute intestinal syndrome
  2. Chronic hepatic syndrome
26
Q

Acute intestinal syndrome

A

• observed in heavily infected animals
• hemorrhage, edema, and fibrosis in the intestine
• phlebitis of the mesenteric veins
• hemorrhages in the lungs
• clinical signs are PROFUSE, DIARRHEA WITH MUCUS AND BLOOD, DEHYDRATION, PALENESS DUE TO ANEMIA, LOSS OF WEIGHT DUE TO HYPOALBUMINEMIA and ASCITES FORMATION

27
Q

Chronic hepatic syndrome

A

• more common in animals; often go unnoticed
• it is an immunologically specific host reaction which results from the presence of eggs in the liver leading to extensive damage and eventuala healing by fibrous tissue formation (granuloma)
• Lymphoid nodules develop around dead parasites in the liver
• Massive thrombosis of the portal veins that lead to hepatic infarction
• presence of ascites

28
Q

Chronic hepatic syndrome or?

A

Clay-pipe stem liver fibrosis

29
Q

drug of choice pf Schistosomosis

A

Praziquantel

30
Q

Prevention of schistosomosis

A

• avoid contact with contaminated water
• proper disposal of human excreta
• destruction of snail intermediate host
• information dissemination

31
Q

species that affecting humans in mesenteric veins of man in africa, south Africa and the middle east

A

S. mansoni

32
Q

species affecting human that eggs laid in the wall of the bladder and urethra

A

S. hematobium

33
Q

° Occurs in portal and mesenteric vessels
° Affects ruminants, equine and baboon
° Present in Southern Europe, South Asia and Africa

A

Schistosoma bovis

34
Q

with spindle shape eggs

A

Schistosoma bovis

35
Q

Intermediate host of Schistosoma bovis

A

Bulinus sp., Physopsis sp.

36
Q

found in the veins of the nasal mucosa of cattle, goat, and horse in India

A

Schistosoma nasalis

37
Q

eggs are boomerang-shaped

A

Schistosoma nasalis

38
Q

Intermediate host of Schistosoma nasalis

A

Lymnaea sp., Indoplanorbis sp.

39
Q

causes nasal granuloma “snoring disease”

A

Schistosoma nasalis

40
Q

nasal granuloma

A

snoring disease

41
Q

occurs in the mesenteric veins of cattle, buffalo, sheep and goat

A

Schistosoma spindalis

42
Q

Eggs are flattened on the side with a terminal spine

A

Schistosoma spindalis

43
Q

Intermediate host of Schistosoma spindalis

A

Planorbis spp., Indoplanorbis spp.

44
Q

Occurs in the portal, mesenteric, pancreatic, hepatic and pelvic vessels of sheep, goat, and cattle, equine and camel in India

A

Schistosoma indicum

45
Q

Cause nodule formation in various organs particularly in the liver and pancreas

A

Schistosoma indicum

46
Q

Affects pig and dog in India

A

Schistosoma suis

47
Q

Eggs are flattened on one side with a small, stout spine

A

Schistosoma suis

48
Q

also known as “rice paddy itch”, “hunters itch”, “clam diggers itch”, “cercarial dermatitis”, “sea bather’s eruption”, “lakeside disease”.

A

Schistosome/Cercarial Dermatitis or “Swimmer’s Itch”

49
Q

a maculopapular skin eruption caused by penetration of the cercaria of non-human schistosomes into the skin of man producing erythema, pruritus, vesicle formation and marked papule formation (non human)

A

Schistosome/Cercarial Dermatitis or “Swimmer’s itch”

50
Q

Incriminated schistosome species are;

A

Trichobilharzia sp., Austrobilharzia sp., Heterobilharzia

51
Q

Incriminated schistosome (wild birds)

A

Trichobilharzia sp.

52
Q

incriminated schistosome (ducks)

A

Austrobilharzia sp.

53
Q

incriminated schistosome (dogs, racoon)

A

Heterobilharzia sp.

54
Q

parasites of the bile duct, and pancreatic ducts, of amphibia, reptiles, birds and mammals. Cuticle often lack spines. No redia stage

A

Dicrocoelidae

55
Q

where eggs laid

A

Genital pore

56
Q

Scientific name of Lanceolate, lancet, or small liver fluke

A

Dicrocoelium dendriticum

57
Q

prevalent in tropical region

A

D. hospes

VPARA 412a (Veterinary Helminthology) (9 decks)

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