Tapeworms_2 Flashcards
SN of fringed tapeworms
Thysanosoma actiniodes
predilection site of Stilesia globipunctata
Small intestine
known as the dwarf tapeworm of man
Hymenolepis nana
smallest tapeworm of poultry
Davainea proglottina
predilection site of Davainea proglottina
duodenum
H. diminuta final hosts
rodents
final hosts of D. proglottina
fowl, pigeon, gallinaceous birds
IH of R. cesticillus
beetles
rostellum of R.tetragona
oval, armed with hooks
most common tapeworm of man
Hymenolepis nana
rostellum of R. echinobothridia
circular, armed with hooks
rostellum of R. cesticillus
flattened and wide, with single row of hooks
suckers of R. cesticillus
inconspicuous or absent
SN of IH of R. tetragona
Pheidole, Tetramorium
it is the only tapeworm with a direct life cycle
Hymenolepis nana
final hosts of Raillietina echinobothridia
chicken and turkey
most pathogenic tapeworm of poultry in the ph
Raillietina echinobothridia
Cotugnia spp present in fowl
Cotugnia digonopora
Cotugnia spp present in duck
Cotugnia fastigata
Cotugnia spp present in pigeon
Cotugnia cuneata
2 genera of Family Dipylididae
Choanotaenia, Dipylidium
double pored tapeworm of dogs
Dipylidium caninum
IH of Choanotaenia infundibulum
musca or housefly
type of metacestodes of Choanotaenia infundibulum
cysticercoids
most common tapeworm of dog worldwide
Dipylidium caninum
1st IH of Mesocestoides lineatus
oribatid mites
size and color of T. asiatica
milky white
size and color of T. saginata
semi transparent
size and color of T. solium
white
larval host of T. saginata
cattle
2nd Ih of M. lineatus
reptiles, birds, dogs, cats
they have gravid proglottids are elongate oval in shape resembling cucumber seeds
Dipylidium caninum
adult host of Taenia species
man
beef tapeworm of man
Taenia saginata
predilection site of T. saginata
small intestine
metacestodes of T. multiceps
coenurus cerebralis
final host of T. taeniaeformis
cats
Taenia spp whose final host is pig
T. asiatica
larval form of T. krabbei
Cysticercus tarandi
larval form of T. taeniaeformis
Cysticerscus fasciolaris
4 taenia spp whose larval site is muscles
T. saginata, T. solium, T. ovis, T. krabbei
larval site of T. serialis
Connective tissue
2 taenia spp whose larval site is the peritoneum
T. hydatigena, T. pisiformis
larva of T. hydatigena
Cysticercus tenuicollis
2 taenia spp whose larval forms is coenurus
T. multiceps, T. serialis
final host of T. asiatica
pig
which taenia spp has reindeer as an IH
T. krabbei
which taenia spp has rabbit as an IH
T. pisiformis, T. serialis
pork tapeworm of man
Taenia solium
final site of T. solium
Small intestine
heavy infection of Taenia spp can cause
myocarditis and heart failure
Modes of larval Taenia saginata infection in humans
ingestion, self contamination, internal autoinfection
Taenia spp with larga rostellum that has sinuous handle and a double row of hooks
T. multiceps
final site of adult E. granulosus
Small intestine
final site of larvall E. granulosus
liver, lung, brain, eye, bone marrow, kidney
type of hydatid cysts with fluid present
unilocular
spherical with laminated membrane and walled off from the surrounding tissue by fibrous adventitia
unilocular
type of hydatid cysts with fibrous capsule and cuticle are absent
osseous
type of hydatid cyst characterized by large numbers of cuticularized vesicles, usally sterile but occasionally contains brood capsules and scolices
alveolar
common name of Echinococcus multilocularis
dwarf fox tapeworm
larval echinococcosis of dwarf fox tapeworm
cystic hydatidosis
larval echinococcosis of dward dog tapeworm
alveolar or alveococcosis
it is the smallest tapeworm of medical importance
echinococcus granulosus
Morphology of Thysanosoma actinioides
- segments are short and fringed posteriorly
- each segment contains 2 sets of reproductive organs, testes lie on median field
- egg has no pyriform apparatus
Morphology of Avitellina centripunctata
- almost cylindrical at the posterios end
- proglottid are short and not distinctly segmented
- eggs lie in hyaline egg capsules
- eggs have no pyriform apparatus
- without vitelline gland
Morphology of Stilesia hepatica
- With prominent suckers and broad neck
- Which short proglottids
- With single genital organs and the pores alternating irregularly
- Uterus is long, transverse, and dumbell shaped
- The ovoid eggs have no pyriform apparatus and it passes through egg capsules
Morphology of Hymenolepis nana
- With rostellum that bears hooks and globular scolex
- With a single set of reproductive organs and the genital pores are unilateral
- Egg is oval and is enclosed by three membranes
Morphology of H. diminuta
- Strobila is usually longer
- With a club shaped scolex
- Has a rudimentary apical unarmed rostellum
Morphology of Amoebotaenia cuneata
- Small up to 4 cm
- Roughly triangular in shape
- Eggs occur singly in egg capsules
Morphology of Choanotaenia infundibulum
- Wider posterior giving the margin a saw edge appearance
- Rostellum armed with hooks
- With sac like uterus before they are completely gravided
- Egg has distinct elongate filaments
act as intermediate host of Thysanosoma actiniodes
Psocids (book dust)
intermediate host of Hymenolepis diminuta
Rat flea (Xenopsylla cheopis)
Flour beetle (Nosopsyllus fasciatus)
Hymenolepididae spp that host are ducks, predilection site in the intestine and its IH is copepods/ isopods
Diorchis nyrocae
Hymenolepididae spp that host is chicken, predilection site in the small intestine and its IH is flour better/ stable fly
Hymenolepis carioca
Hymenolepis niana
Hymenolepididae spp that host are ducks and geese, predilection site in the intestine and its IH is aquatic crustaceans
Hymenolepis lanceolata
predilection site of Davainea proglottina
Duodenum
Raillietina sp. that is most pathogenic
Raillietina echinobothridia