Cestodes Flashcards
definition of cestode
semented with 2 or 4 suckers without intestinal canal
is there different sexes
no sexual dimorphism in cestodes
types of cestodes
monieziosis
stilesiosis
thysanosomosis
anoplocephalosis
dipylidium caninum
diphylobothrium latum
tape worms of Ru cause
moniezia expansa
m. benedeni
thysaniezia
avitellina
stilesia
life cycle of Ru Tapeworms
indirect
intermediate host of Ru Tapeworms
box mite
eggs of Ru Tapeworms
cysticercoid
definite host of adult form of Ru Tapeworms
domestic and wild ru
location of adult form of Ru Tapeworms
small intestine
morphology of adult forms of Ru Tapeworms
white
4-5m
flat, flaccid
segments of adult forms of Ru Tapeworms
wider than they are long
genitals of adult forms of Ru Tapeworms
2 sets and a row of interproglottidal glands
genital openings on both rims of narrow proglottids
suckers of adult forms of Ru Tapeworms
on tip of strobila
unarmed scolex with 4 suckers
acute symptoms of adult forms of Ru Tapeworms
abdominal distension
diarrhoea
oedema
ataxia
chronic symptoms of adult forms of Ru Tapeworms
anaemia
emaciation
fleece shedding
digestive problems
weight loss
cachexia
symptomless for adult forms of Ru Tapeworms
wild ru and cattle
pathology of adult forms of Ru Tapeworms
haemorrhage and inflammation of small intestine
detection of adult forms of Ru Tapeworms
flotation
name of larval form of Ru Tapeworms
cysticercoid
intermediate host of larval form of Ru Tapeworms
soil mites
location of larval form of Ru Tapeworms
body cavity of arthropod
morphology of larval form of Ru Tapeworms
100um spherical larva
contains 1 scolex in outer envelope
detection of larval form of Ru Tapeworms
collection of mites
treatment of larval form of Ru Tapeworms
niclosamide
praziquantel
benzimidazole
control of larval form of Ru Tapeworms
preventative anthelminic treatment in spring
tapeworms of Eq
anoplocephala perfoliate
a. magna
definite hosts of tapeworms of Eq
domestic and wil equine
location of tapeworms of Eq
small intestine
ileocaecal regions
morphology of tapeworms of Eq
white
5-500mm
genitals of tapeworms of Eq
1 set
genital openings on same side of narrow proglottids
no interproglottidal glands
segment size of tapeworms of Eq
broader than long
1 genitals in each glottids
acute symptoms of of tapeworms of Eq
abdominal distension
diarrhoea
oedema
ataxia
chronic symptoms of tapeworms of Eq
anaemia
emaciation
weight loss
achexy
pathology of tapeworms of Eq
inflammation of small intestine
haemorrhage
detection of tapeworms of Eq
flotation
larval form of tapeworms of Eq
same as moniezia
flea or cucumber tapeworm
dipylidiuum caninum
host of adult form of flea or cucumber tapeworm
dogs
location of adult form of flea or cucumber tapeworm
small intestine
morphology of adult form of flea or cucumber tapeworm
white
100-500mm long
clearly segmented
flat
double pore
flaccid
segment size of adult form of flea or cucumber tapeworm
longer than broader
contain 2 sets of genitalia
genitals of adult form of flea or cucumber tapeworm
2 sets
genital openings on both sides
suckers of adult form of flea or cucumber tapeworm
on tip of strobila, armed scolex with 4 suckers and a hooker rostelllium
symptoms of adult form of flea or cucumber tapeworm
none usually
pathology of adult form of flea or cucumber tapeworm
inflammation
detection of adult form of flea or cucumber tapeworm
floatation
larval form of flea or cucumber tapeworm
cystircercoid
intermediate host of larval form of flea or cucumber tapeworm
body cavity of arthropod
morphology of larval form of flea or cucumber tapeworm
100um sized spherical larva
1 scolex in outer envleope
no space
broad/ fish tape worm
diphyllobotherium latum
host of adult form of fish tapeworm
fish eating mammals
location of adult form of fish tapeworm
small intestine
morphology of adult form of fish tapeworm
white
1-5m ling
sharply segmented
segments size of adult form of fish tapeworm
prolottids are broader than long
1 set of genitalis
genitals of adult form of fish tapeworm
1 set
openings on middle line of proglottids
symptoms of adult form of fish tapeworm
abdominal pain
diarrhoea
b12 deficiency
pathology of adult form of fish tapeworm
n/a
detection of adult form of fish tapeworm
sedimentation
eggs contain blastomeres
larval forms of fish tapeworm
ciliated oncosphere (coracidium) in water
procercoid and pleurocercoid in intermediate hosts
intermediate host of larval forms of fish tapeworm
crustaceans then fresh water fish
location of larval forms of fish tapeworm
body cavity of hosts
morphology of larval forms of fish tapeworm
cylindrical in arthropod
larger in fish
detection of larval forms of fish tapeworm
inspection in processing plant
function of scolex
anchor worm into wall of intestine
proglottids
segmented strobila produced by scolex
hooks
armed
rostellum
unarmed
sexual organs
each proglottid grows at least 1 set of germaphroditic sexual organs which are continuously enlarging
how does fertilisation take place
route of autocopulation
Taenia of carnivores
t. pisiformis
t. hydatigena
t. ovis
t. cervi
t. crassiceps
t. taeniaeformis
definite host of t. taeniaeformis
cats
morphology of Taenia of carnivores
0.2-5m
sharply segmented
white, flat, flaccid
armed scolex with 4 suckers and hooked rostellum
proglottids of Taenia of carnivores
longer than broad
genitals of Taenia of carnivores
1 set
openings on 1 side of proglottids but irregularly arranged
symptoms of Taenia of carnivores
NA
larval forms of Taenia of carnivores
cysticercus
location of c. pisiformis
liver and mesentry of rabbits and hares
location of c.tenuicollis
liver and mesentery of ru and su
location of c.ovis
skeletal muscle of sheep
location of c. cervi
skeletal muscle of deer
location of c.longicollis
body cavity of rodetns
location of c. fasciolaris
liver of rodent
morphology of larval forms of taenia or carnivores
1-5cm
1 protoscolex surrounded by capsule
space comtaining liquid
taenia of humans
t. solium
t. saginota
mophology of taenia of humans
1-5m
sharply segmented
fla, flaccid
armed scolex with 4 suckers
which taenia of humans is unarmed
t. saginata
larval forms of taenia of humans
cystercerus cellulose (t. solium)
cystercerus bovis (t. sagintata)
location of c. cellulose
skeletal muscle of su or brain of humans
location of c. bovis
skeletal muscles of bo
morphology of larval of taenia of humans
1-2cm
1 protoscolex
space containing liquid
taenia of canines
t. multiceps
t. serialis
morphology of taenia of canines
0.4-1m
sharply segmented
flat, flaccid
armed scolex with 4 suckers and a hooked rostellum
genitals of taenia of canines
1 set of genitals
opening irregularly on 1 side of proglottids
larval forms of taenia of canines
coenurus cerebralis
coenurus serialis
location of larval forms of taenia of canines
c. cerebralis in cns of small ru, su, eq, hu
c. serialis in connective tissue of hare
morphology of larval form of taenia of canines
spherical
flat
containing hundreds of scolices
adult form of ecinococcus
e. granulosus
e. multilocularis
host of adult form of ecinococcus
canines
location of adult form of ecinococcus
small intestinemorpho
morphology of adult form of ecinococcus
3-6mm
white, flat, flaccid
armed scolex with 4 suckers and a hooked rostellum
segments of e. granulosa
3 segments
proglottids longer than broad
segments of e. multilocularis
5 segments
proglottids longer than broad
genitals of adult form of ecinococcus
1 set of genitals
openings only on 1 side
larval form of ecinococcus
e. hydatidosus
e. alveolaris
intermediate host of larval form of ecinococcus
prey
location of larval form of ecinococcus
parenchyma and bone marrow (granulosa)
liver (multiocularis)
Morphology of e. granulosa
separate cysts with non dividing cavity and a 3 layered wall
morphology of e. multilocularis
net of caverns in a divided cavity