Trematodes

Question 1

Three characteristics of adult trematodes

Answer 1

Non-segmented
Flattened
Leaf-like

Question 2

Intestinal Species

Answer 2

Fasciolopsis buski
Heterophyes hetrophyes
Metagonimus yokogawai

Question 3

Liver species

Answer 3

Fasciola hepatica

Clonorchis sinensis

Question 4

Lung Species

Answer 4

Paragonimus westermani

Question 5

Blood Species

Answer 5

Schistosoma mansoni
Schistosoma japonicum
Schistosoma haematobium

Question 6

Fasciolopsis buski

Answer 6

Large Intestinal Fluke

Question 7

Heterophyes heterophyes

Answer 7

Heterophyid Fluke

Question 8

Metagonimus yokogawai

Answer 8

Yokogawai’s Fluke

Question 9

Fasciola hepatica

Answer 9

Sheep Liver Fluke

Question 10

Clonorchis sinensis

Answer 10

Chinese Liver Fluke

Question 11

Paragonimus westermani

Answer 11

Oriental Lung Fluke

Question 12

Schistosoma mansoni

Answer 12

Manson’s Blood Fluke

Question 13

Schistosoma japonicum

Answer 13

Blood Fluke

Question 14

Schistosoma haematobium

Answer 14

Bladder Fluke

Question 15

Another name for trematodes

Answer 15

Dignea

Question 16

Parasites that reproduce via separate sexes

Answer 16

Dioecious

Question 17

The general term for human infection of flukes

Answer 17

Distosomiasis

Question 18

A lid like structure present on SOME fluke eggs

Answer 18

Operculum

Question 19

Presence and location of spines distinguish _____________ species

Answer 19

Schistosoma

Question 20

All adults except Schistosomes are (3):

Clue: LHT

Answer 20

Leaf-like
Hermaphroditic
Typically food-borne

Question 21

Dioecious fluke species

Answer 21

Schistosomes

Question 22

Schistosomes enter humans through

Answer 22

Direct penetration

Question 23

All trematode life cycles require this as an intermediate host

Answer 23

Snails

Question 24

Two categories of Trematodes:

Answer 24

Organ-dwelling

Blood-dwelling

Question 25

In organ dwelling flukes, infection occurs when?

Answer 25

After ingestion of contaminated: Water plants Crab Crayfish Fish

Question 26

In organ-dwelling flukes, adults are found in: | Clue: IBL

Answer 26

Intestines Bile duct Lungs

Question 27

In organ-dwelling species, eggs may be passed in:

Answer 27

Stool | Sputum

Question 28

All flukes but Schistosomes are ___________ dwelling.

Answer 28

Organ

Question 29

Contents of egg

Answer 29

Miracidium

Question 30

Larval stage

Answer 30

Sporocyst containing rediae

Question 31

Final stage larvae

Answer 31

Cercariae

Question 32

The miracidium penetrate specific ___________ species

Answer 32

Snail

Question 33

Sporocyst containing _____________ forms

Answer 33

Rediae

Question 34

_______________ emerge from snail and enter water plant, fish, crab, or crayfish.

Answer 34

Cercariae

Question 35

Blood-dwelling flukes

Answer 35

Schistosomes

Question 36

Schistosomes initiate infection through

Answer 36

Penetration of cercariae larva into the skin while swimming in contaminated water

Question 37

After initiating infection, schistosomes emerge into __________ form.

Answer 37

Schistosomule

Question 38

Schistosomes take up residence in blood vessels around: | Clue: LIU

Answer 38

Liver Intestinal tract Urinary bladder

Question 39

In blood dwelling flukes, eggs spill into:

Answer 39

Stool/ | Urine

Question 40

Specimen of choice for trematodes if species-dependent: | Clue: FR. SUD

Answer 40

``` Feces Rectal biopsy Sputum Urine Duodenal drainage ```

Question 41

__________ tests are also available in diagnosing trematode/trematode infection.

Answer 41

Serologic

Question 42

Symptoms vary by:

Answer 42

Infection | Affected area

Question 43

General symptoms of distosomiasis | Clue: DJ TAE

Answer 43

``` Diarrhea Jaundice Tissue damage Allergic and toxic reactions Eosinophilia ```

Question 44

Phylum of trematodes

Answer 44

Platyhelminthes

Question 45

Shape, egg content, and other features of of F. buski and F. hepatica egg

Answer 45

Somewhat oblong Undeveloped miracidium Presence of a distinct operculum

Question 46

Larger and has no shoulder (adult). a. Fasciolopsis buski b. Fasciola hepatica

Answer 46

a. Fasciolopsis buski

Question 47

Smaller and with shoulder (adult). a. Fasciolopsis buski b. Fasciola hepatica

Answer 47

b. Fasciola hepatica

Question 48

Specimen of choice for F. species

Answer 48

Stool

Question 49

Eggs are distinguishable for F. species. | True or False?

Answer 49

False. | They are indistinguishable

Question 50

Methods to recover adult Fasciola. | Clue: GEE

Answer 50

Gel diffusion Enterotest ELISA

Question 51

Speciation of F. species can be done via __________

Answer 51

Recovery of adult Fasciolopsis worm