flatforms

Question 1

flatworms also called

Answer 1

platyhelminths

-consist of cestodes and digenea

Question 2

flukes- trematodes look

Answer 2

flattened and non-segmented

-live in liver

Question 3

flukes have acetabulas which are

Answer 3

2 cup shaped muscular suckers

-oral sucker and ventral sucker and used for attachment and nutrients

Question 4

2 kinds of flukes

Answer 4

hermaphroditic and unisex

Question 5

in both kinds of flukes sexual production happens in

Answer 5

human adult and is followed by multiplication of larval stages in the snail so life cycle is complex

Question 6

all flukes have what as intermediate host

Answer 6

snail

Question 7

schistosome– over arching (unisex)

Answer 7

-blood flukes
-unisex

males often live in females for years

Question 8

in schistosome how to eggs leave host

Answer 8

urine or feces

Question 9

after eggs leaving host they

Answer 9

hatch into form called miracadium

Question 10

after turning into miracidium it infects

Answer 10

snail and have several morphological changes

-all species must be near water to mature (snails– water)

Question 11

infective form of schistosome

Answer 11

cercariae

Question 12

describe cercariae

Answer 12

emerge and swim free, lose tail and penetrate skin of human

Question 13

what schistosome has a lateral spine used for attachment

Answer 13

mansoni

Question 14

where does Schistosome mansoni live in body

Answer 14

in liver and veins around the intestine

Question 15

what is associated with Schistosome mansoni

Answer 15

swimmer’s itch

Question 16

infective stage of Schistosome mansoni

Answer 16

cercariae

Question 17

which schistosome is important in a cause of morbidity and mortality worldwide

Answer 17

mansoni

Question 18

which schistosome have smaller eggs and a protruding spine on SIDE

Answer 18

japonicum

Question 19

where is japonicum found in body

Answer 19

liver and around veins of intestine

Question 20

what schistosome has a terminal spine at end of egg

Answer 20

haematobium

Question 21

where is haematobium found in the body

Answer 21

veins around bladder

-clogs catheters
-found in urine

Question 22

what schistosome is a cause of bladder cancer

Answer 22

haematobium

Question 23

hermaphroditic flukes

Answer 23

-female and male parts
-flatworms and nonsegmented
-operculum
-2nd intermediate host

Question 24

what is an operculum

Answer 24

opening at one end of parasite; where mature worm leaves the egg

-may cause egg to sink

NO FLOATATION

Question 25

unisex have ____ intermediate and hermaphroditic have _____ intermediate hosts

Answer 25

1; 2

Question 26

known as oriental liver fluke

Answer 26

clonorchis sinensis

Question 27

life cycle of Clonorchis sinensis

Answer 27

1st host- snail larve leaves snail and encyst as metacercariae in 2nd host- freshwater fish

Question 28

2nd host for Clonorchis sinensis

Answer 28

freshwater fish

Question 29

infective form of Clonorchis sinensis

Answer 29

metacercariae

Question 30

how to get Clonorchis sinensis

Answer 30

eating undercooked fish and metacercariae migrates to liver

Question 31

dignostic Clonorchis sinensis

Answer 31

egg; operculum at shoulder(wide rim) and knob at other

Question 32

known as oriental lung fluke

Answer 32

paragonimus westermanni

Question 33

first and second host of paragonimus westermanni

Answer 33

1- snail 2-crab or crayfish

Question 34

specimen of choice for paragonimus westermanni

Answer 34

sputum -may be bloody

Question 35

diagnostic of paragonimus westermanni

Answer 35

egg; may be operculated

Question 36

what does egg look like in paragonimus westermanni

Answer 36

thick back of shell and bigger than clonorchis

Question 37

what can paragonimus westermanni be mistaken as

Answer 37

TB because egg can be destroyed in digest procedure

Question 38

known as sheep liver fluke

Answer 38

fasciola hepatica

Question 39

known as large intestinal fluke

Answer 39

fasciola buski

Question 40

hosts for fasciola hepatica and buski

Answer 40

1- snail 2 hepatica-sheep? buski- pig and dog?

Question 41

infective form for fasciola hepatica and buski

Answer 41

metacercariae

Question 42

how do humans get fasciola hepatica and buski

Answer 42

undercooked water plants

Question 43

diagnostic for fasciola hepatica and buski

Answer 43

egg

Question 44

where does f. buski live

Answer 44

small intestine

Question 45

where does heptica live

Answer 45

bile ducts

Question 46

where is buski prevalent

Answer 46

pig and dog -vietnam, thailand, china

Question 47

where is heptica prevalent

Answer 47

raising sheep