Brainscape's Knowledge GenomeTM

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


See full index

Parasitology > Liver flukes > Flashcards

Liver flukes Flashcards

1
Q

Among the liver flukes, which of them are relatively elongate and narrow-bodied worms that tend to localize in the smaller, more distal parts of the biliary tree?

3 cla (technically apat)

A
  • Clonorchis
  • Opisthorchis
  • Dicrocoelium

Only in heavy infections are these worms found in the common bile duct or gallbladder.

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

Among the liver flukes, which of them are larger and more rounded worms that tend to localize in the larger, more proximal parts of the biliary tree?

A

Fasciola spp.

Although Dicrocoelium dendriticum may be known as Fasciola dendriticum, sabi ni boss markell sa mas maliliit daw na biliary passage si Dicrocoelium eh

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

Which of the liver flukes are similar in the location of their vitellaria positioned in the middle third of the body, same level w/ its uterus?

A
  • C. sinensis
  • Opisthorchis spp.

only difference ay testes (shape & morphology)

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

Among the liver flukes that have the same location of vitellaria, which of the two has a highly branched, arranged in tandem testes that is located posteriorly?

A

Clonorchis sinensis

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

Among the liver flukes that have the same location of vitellaria, which of the two has a lobate, arranged obliquely testes that is located posteriorly?

A

Opisthorchis spp.

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

Opisthorchis viverrini and Opisthorchis felineus have testes that are lobate and arranged obliquely. However, which among the two have more deeply lobulated testes positioned close to each other?

A

Opisthorchis viverrini

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

The eggs of Opisthorchis spp. are similar in appearance w/ what spp.?

2 cla

A
  • Clonorchis sinensis
  • Heterophyids

Heterophyids = Heterophyes heterophyes and Metagonimus yokogawai

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

What is the common name of Clonorchis sinensis?

A
  • Chinese liver fluke
  • Oriental liver fluke
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The eggs of Clonorchis sinensis have a distinct ____ operculum

convex or concave?

concave = paloob curve; convex = palabas

A

convex

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

The eggs of Clonorchis sinensis may resemble Heterophyes and Metagonimus but may have a small ____-shaped process at the abopercular end.

A

comma-shaped

tbh, same w/ Opisthorchis na may small protuberance sa abopercular end.

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

The eggs of Clonorchis sinensis have been described to have the appearance of what?

A

old-fashioned lightbulb

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

First Intermediate Hosts of Clonorchis sinensis

A
  • Parafossarulus
  • Bulinus
  • Thiara
  • Alocinma
  • Melanoides
  • Semisulcospira

PBTAMS

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

Second Intermediate Hosts of Clonorchis sinensis

A
  • Cyprinidae
  • freshwater shrimp

basta freshwater fish

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

Diagnosis of Clonorchis sinensis is by the recovery of eggs via what samples?

Kumbaga, what r the samples preferred for diagnosis?

A
  • Stool
  • Duodenal aspirate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The acute phase of clonorchiasis lasts for at least ____ and may be characterized by fever, diarrhea, epigastric pain, and sometimes jaundice

A

a month

eggs also appear in the feces abt a month after infection

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

The gallbladder may be inflamed and the formation of gallstones may manifest upon worm invasion. What do you call these two conditions?

or disease

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

What do you call the inflammation of the bile duct system that manifests upon the invasion of the biliary passages by the liver flukes?

A

Cholangitis

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

Carcinomas, such as adenocarcinoma and cholangiocarcinoma, are commonly attributed to what liver fluke?

A

Clonorchis sinensis

19
Q

Drug of choice for cholonorchiasis

A

Praziquantel

20
Q

What is the common name of Opisthorchis felineus?

A

cat liver fluke

felineus = feline = cats

parasitizes cats; but, seen in humans too (same pathology w/ Clonorchis sinensis

21
Q

The eggs of Opisthorchis viverrini are ____ than those of Clonorchis sinensis. Otherwise, they are indistinguishable.

narrower or wider

A

narrower

thus, operculated and may thickened abopercular end (similar also to heterophyids)

22
Q

First Intermediate hosts of Opisthorchis spp.?

A

Bithynia

22
Q

Second Intermediate hosts of Opisthorchis spp.?

A
  • Cyprinidae
  • Cobitidae
23
Q

What is the common name of Opisthorchis viverrini?

A
  • Southeast Asian liver fluke
  • Siberian liver fluke
24
Q

Drug of choice for Opisthorchis spp.?

A

Praziquantel

25
Q

What is known as the common parasite of the biliary tree of herbivores?

A

Dicrocoelium dendriticum

also known as Fasciola dendriticum, Fasciola lanceolata

26
Q

What is the common name of Fasciola dendriticum?

A

Lancet fluke

Lanceolate fluke

Fasciola dendriticum = Dicrocoelium dendriticum

27
Q

The cercariae of Dicrocoelium dendriticum are liberated from the snails during rainy periods and become massed in “____” shed on vegetation which are eaten by the second intermediate host.

A

slime balls

slime balls = accumulated cercaria

28
Q

For humans to acquire dicrocoeliasis, they must ingest the secondary host which is an?

A

ant

infected ant lmao

29
Q

First Intermediate host of Dicrocoelium dendriticum

A

Cionella lubrica

30
Q

Second Intermediate host of Dicrocoelium dendriticum?

A

Formica fusca

31
Q

What is the common name of Fasciola hepatica?

A

sheep liver fluke

Temperate Liver Fluke

32
Q

What do you call the characteristic of Fasciola spp. that resembles a shoulder and is found anteriorly?

A

cephalic cone

33
Q

The eggs of Fasciola spp. is similar to the eggs of what flukes?

A
  • Fasciolopsis
  • Echinostomes
34
Q

The maturation of metacercaria into adult liver flukes in human hosts may take how many months?

A

3-4 months

35
Q

____ infections of Fasciola, in which eggs ingested during the consumption of infected liver appear in the stool.

A

Spurious

meaning it won’t infect

36
Q

Adult worms in the liver may be viewed by what?

A

ultrasonography

ultrasound (via sonogram)

37
Q

First Intermediate host of Fasciola spp.

A

Lymnaea spp.

38
Q

Second Intermediate host of Fasciola spp.

A
  • Ipomea obscura (kangkong)
  • Nasturtium officinale (watercress)
39
Q

What do you call the pharyngeal form of the disease that results from eating raw animal liver infected with Fasciola?

A

Halzoun

40
Q

Drug of choice for Fasciola spp.?

A
  • Bithionol
  • Triclabendazole
41
Q

Common name of Fasciola gigantica?

A

giant liver fluke

Tropical liver fluke

42
Q

Fasciola gigantica has a more ____ shape than Fasciola hepatica.

A

attenuated

reduced; smaller; more elongated din

Parasitology (25 decks)

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