Parasitology Trematodes

Front 1

What are the 3 blood flukes?

Back 1

1. Schistosoma japonicum

2. Schistosoma mansoni

3. Schistosoma haematobium

Front 2

What are the 4 liver flukes?

Back 2

1. Clonorchis sinensis

2. Fasciola hepatica

3. Opistorchis felineus

4. Opistorchis viverinii

Front 3

What is the lung fluke?

Back 3

Paragonimus westermani

Front 4

What are the 3 intestinal flukes?

Back 4

1. Fasciolopsis buski

2. Echinostoma ilocanum

3. Artyfechinostomum malayanum

Front 5

What are the 4 Heterophyd group worms?

Back 5

1. Heterophyes heterophyes

2. Metagonimus yokogawai

3. Haplorchis tachui

4. Haplorchis yokogawai

Front 6

Common name of Schistosoma japonicum

Back 6

Oriental blood fluke

Front 7

Common name of Schistosoma mansoni

Back 7

Manson's blood fluke

Front 8

Common name of Schistosoma haematobium

Back 8

Vesical blood fluke

Front 9

Common name of Clonorchis sinensis

Back 9

Chinese liver fluke

Front 10

Common name of Fasciola hepatica

Back 10

Common liver fluke/Sheep liver fluke

Front 11

Common name of Opistorchis sinensis

Back 11

Southeast Asian liver fluke

Front 12

Common name of Paragonimus westermano

Back 12

Oriental lung fluke

Front 13

Common name of Fasciolopsis buski

Back 13

Giant intestinal fluke

Front 14

Common name of Echinostoma ilocanum

Back 14

Garrison's fluke

Front 15

Common name of Artyfechinostomum

Back 15

No common name

Front 16

Common name of Heterophyes heterophyes

Back 16

Von Siebold's fluke

Front 17

Common name of Metagonimus yokogawai

Back 17

Small intestinal fluke

Front 18

Common name of Haplorchis tachui

Back 18

No common name

Front 19

Common name of Haplorchis yokogawai

Back 19

No common name

Front 20

The free living larvae given off by infected snail that penetrates the skin of the human host

Back 20

Cercariae

Front 21

Encysted form of cercariae

Back 21

Metacercariae

Front 22

This drug causes:

-paralysis of musculature

-attachment of phagocytes to parasite and death.

Back 22

Praziquantel

Front 23

Where is Schistosoma japonicum common?

Back 23

Far East

Front 24

Where is Schistosoma mansoni common?

Back 24

Africa and America

Front 25

Where is Schistosoma haematobium common?

Back 25

Africa

Front 26

How many people are infected with Schitosomiasis at any given time?

Back 26

250 million

Front 27

Trematode Genus with separate male and female sexes

Back 27

Schistosoma

Front 28

How long are adult schistosomas?

Back 28

10 to 20mm

Front 29

What is the key characteristics of Schistosoma male?

Back 29

Lamelliform shape with marginal folds

Front 30

Infective stage of Schistosoma genus

Back 30

Cercariae

Front 31

1st IH of Schistosoma japonicum

Back 31

Oncomelania spp.

Front 32

1st IH of Schistosoma mansoni

Back 32

Blomphalaria spp.

Front 33

1st IH of Schistosoma haematobium

Back 33

Bulinus spp.

Front 34

Habitat of Schistosoma japocum

Back 34

veins of GIT

Front 35

Habitat of Schistosoma mansoni

Back 35

veins of GIT

Front 36

Habitat of Schistosoma haematobium

Back 36

veins of BLADDER

Front 37

Schistosoma with vestigial spine

Back 37

Schistosoma japonicum

Front 38

Schistosoma with lateral spine

Back 38

Schistosoma mansoni

Front 39

Schistosoma with terminal or apical spine

Back 39

Schistosoma haematobium

Front 40

Schistosoma with eggs similar to S. haematobium curved spine, presence of central bulge. Also has an hour-glass appearance

Back 40

Schistosoma intercalatum

Front 41

Found in feces. Closely resembles S. japonicum egg except it is smaller. May be coated with debris.

Back 41

Schistosoma mekongi

Front 42

Has been reported in a mountainous region of Peninsular malaysia The eggs are similar with S, japonicum

Back 42

Schistosoma malayensis

Front 43

What are three major disease syndromes that occur in schistosomiasis?

Back 43

1. Schistosome dermatitis

2. acute schistosomiasis (Katayama fever)

3. chronic schistosomiasis

Front 44

Where is F. buski common

Back 44

Central and southeast asi

Front 45

Morphology of F. Buski

Back 45

Elongated oval fluke

Front 46

Habitat of F. Buski

Back 46

Small intestine

Front 47

Length of F. buski

Back 47

2 to 7cm

Front 48

1st IH of F. Buski

Back 48

Snails

1. Segmentina

2. Hippeutis

3. Gyraulus

Front 49

2nd IH of Buski

Back 49

Aquatic plants

1. Trapa ( water caltrop)

2. Eichhornia ( Water hyacinth)

3. Eliocharis ( Water hyacinth)

4. Zizania ( water bamboo)

Front 50

True or False:

Dried plants are not dangerous since dessication kills metacercaria

Back 50

True

Front 51

Infective stage of F. buski

Back 51

metacerceriae/ingestion of cysts

Front 52

Pathogenesis of F. buski

Back 52

Fasciolopiasis

Front 53

Pathogenesis of S. japonicum

Back 53

Oriental schistosomiasis

Front 54

Pathogenesis of S. mansoni

Back 54

Intestinal bilharziasis

Front 55

Pathogenesis of S. haematobium

Back 55

Urinary bilharziasis

Front 56

has a horseshoe-shaped collar of spines surrounding the dorsal and lateral sides of the oral sucker

Back 56

Echinostoma

Front 57

elongated, moderate sized trematodes with slightly tapering, rounded extremeties

Back 57

Echinostoma

Front 58

The cuticle bears minute scalelike spines

Back 58

Echinostoma

Front 59

The more or less lobate testes occupy a tandem position at the lower half of the worm

Back 59

Echinostoma

Front 60

The globular ovary is anterior to the testes

Back 60

Echinostoma

Front 61

A cirrus is present

Back 61

Echinostoma

Front 62

The vitellaria with small follicles usually fill the lateral borders of the posterior two third of the worm

Back 62

Echinostoma

Front 63

The looped uterus lies anterior to the ovary

Back 63

Echinostoma

Front 64

The thin shelled egg contains an undeveloped miracidium at oviposition

Back 64

Echinostoma

Front 65

Pathogenesis of Echinostoma ilocanum

Back 65

Irritates the intestinal mucosa

Front 66

Infective stage of E. ilocanum

Back 66

Metcercariae

Front 67

1st IH of E. ilocanum

Back 67

Gyraulus convexiusculus

Front 68

2nd IH of E. ilocanum

Back 68

1. Viviparous

2. Pila luzonica

Front 69

Has two ovoid testes side by side in the posterior fifth of the body

Back 69

Heterophyids

Front 70

A protrusible, nonadhesive genital sucker at the left posterior border of the ventral sucker

Back 70

Heterophyids

Front 71

large ventral sucker in the middle third of the body

Back 71

Heterophyids

Front 72

cuticle covered with fine scale like spines

Back 72

Heterophyids

Front 73

its small size 1.3 by 0.5mm

Back 73

Heterophyids

Front 74

Pathogenesis of Heterophyes heterophyes

Back 74

Heterophyiasis

Front 75

• A natural parasite of man and domesticated and wild fish-eating mammals

Back 75

Heterophyes heterophyes

Front 76

eggs: light brown-thick shelled, operculated 29 by 16 u and contain a fully developed miracidia at oviposition with a slight shoulder at the rim of the operculum and sometimes a knob at the posterior pole

Back 76

Heterophyes heterophyes

Front 77

1st IH of H. heterophyes

Back 77

Brackish water snails

1. Pirenella ( in Egypt)

2. Cerithedea ( in Japan)

Front 78

2nd IH of H. heterophyes

Back 78

Fish

1. Mugil ( mullet)

2. Tilapia ( Egypt)

3. Acanthogobius ( in japan together with mugil)

Front 79

Infective stage of H. heterophyes

Back 79

metacercariae

Front 80

a minute intestinal fluke (and the smallest human fluke).

Back 80

Metagonimus yokogawai

Front 81

Adult worms are identified by : small size, 1.4 by 0.6 mmpyriform shape with a rounded posterior and a tapering anterior end

Back 81

Metagonimus yokogawai

Front 82

Eggs:light-yellow-brown , thin shelled , operculated eggs, 28 by 17 u with a nodular thickening on the posterior end and contain at oviposition a mature miracidia.

**Difference from C. sinensis:egg has a less distinct opercular groove

Back 82

Metagonimus yokogawai

Front 83

1st IH of M. yokogawai

Back 83

Snails

1. Semisulcospira - most common

2. Thiara

3. Hua

Front 84

2nd IH of M. yokogawai

Back 84

Freshwater salmonoid fishes and Cyprinoids

1. Plectoglossus

2. Salmo

3. Richardsonium

4. Odontobutis

Front 85

Pathogenesis of M. yokogawai

Back 85

Metagonomiasis

Front 86

Where is C. sinensis more common?

Back 86

China, jorea, japan

Front 87

flat, elongated, aspinous, flabby, opalescent gray worm , tapering anteriorly and somewhat rounded posteriorly

Back 87

C. sinensis

Front 88

Pathogenesis:

fever, epigastric pain, anorexia and liver enlargement and jaundice are common in the acute phase.

can cause acute pancreatitis

Cirrhosis Cholecystitis and cholelithiasis can cause adenocarcinoma

Back 88

C. sinensis

Front 89

Pathogenesis of C. sinensis

Back 89

Clonorchiasis

Front 90

are narrower than C. sinensis and have more tapering ends, a pointed terminal knob, and a less conspicuous opercular rim

Back 90

F. hepatica

Front 91

found in all 5 continents, in over 50 countries, especially where sheep or cattle are reared.

Back 91

F. hepatica

Front 92

Meaning of halzoun

Back 92

suffocation

Front 93

1st IH of F. hepatica

Back 93

Lymnea philippinensis or L. swinhoe

Front 94

2nd IH of F. hepatica

Back 94

water crest or kangkong

Front 95

prevalent in east Russia, Poland , Siberia, Korea, japan, North Vietnam , India and the Philippines.

Back 95

Opistochis felineus

Front 96

1st IH of Opistorchis felineus

Back 96

Bulimus snails

Front 97

2nd IH of Opistorchis felineus

Back 97

Cyprinoid fishes.

1. Chub

2. Tench

Front 98

Infective stage of Opistorchis felineus

Back 98

metacercariae

Front 99

a major health (problem in Northern Thailand and Laos( 80% to 90% in rural people)

Occurs also in Cambodia, Malaysia and North Vietnam

Back 99

Opistorchis viverinii

Front 100

Pathogenesis

Back 100

cholangiocarcinoma / Liver cancer

Front 101

most commonly encountered in parts of Asia, Africa and South America.

Back 101

P. westermani

Front 102

plump reddish brown oval worm

10 by 4 mm

Back 102

P. westermani

Front 103

infective stage of of P westermani

Back 103

metacercariae

Front 104

1st IH of P. westermani

Back 104

Snails

1. Hua ( Far East)

2. Semisulcospira ( Far East)

3. Thiara ( Far east)

Front 105

2nd IH of P. Westermani

Back 105

Crustaceans

1. Parathelphusa ( Far east)

2. Pseudothelphusa ( south America)

3. Astacus ( crayfish in the Far East)

Front 106

Pathogenenisis of P. westermani

Back 106

ParagonimiasisH

Front 107

Habitat of P. westermani

Back 107

Lungs (cystic cavities near the bronchi)