Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
32 Cards in this Set
- Front
- Back
taenia solium is
|
pork tapeworm
|
|
taenia saginata is
|
beef tapeworm
|
|
echinococcus granulosus is
|
hydatid (cystic) tapeworm
is present near Haifa |
|
cestodes lack a ___ system, and depend on ____ for metabolism
|
digestive
diffusion |
|
head of a tapeworm is called
|
scolex
|
|
t. solium has a maximum length of ___m and t. saginata ___m
|
7
25 |
|
taneiasis is endemic to ___
|
whole world
|
|
a taenia segment is called a
|
proglottid
|
|
in a proglottid, first ___ gametes mature, then ___. the gametes are released into ___, which is located ___. the embryo then migrates to ___, which is located ___. once the gametes fuse the proglottid is called ___
|
male
female genital pore outside the proglottid uterus inside the proglottid gravid |
|
t. saginata has ___, whereas t. soleum has
|
no rostellum
rostellum |
|
taenia life cycle (6)
|
1. in human intestine, taenia releases eggs
2. pig/cow eats eggs in human feces (intermediate host) 3. in pig/cow, egg releases larvae into blood -> muscle 4. larvae arrest development and form cysticercus 5. humans eat pig/cow 6. in human intestine, cyst develops into proglottids |
|
if people eat larval form of ___ they can get ___
|
t. solium
cysticercosis |
|
___ is a teniacide which uncouples oxidative phosphorylation
___ causes explusion of the worm by inducing contraction |
niclosamide
praziquantel |
|
cysticerci die below ___C and above ___C
|
-10
50 |
|
echinococci have ___ proglottids
1 is ___, 1 is ___ and the other is ___. |
3
immature mature gravid |
|
e. granulosus life cycle (5)
|
1. in dog (DH) intestine, proglottid releases eggs
2. human/sheep/goat eat egg in dog feces 3. in IH, eggs develop into hydatid cysts 4. dogs eat cyst in meat 5. in dog intestine, cyst hatches and proglottids develop |
|
e. granulosus cysts cause ___ (2) in abdomen
|
distension
ascites |
|
e. granulosus cysts cause ___ in liver
|
obstructive jaundice
|
|
e. granulosus cysts cause ___ (3) in lung
|
pulmonary abcess
cough chest pain |
|
e. granulosus cysts cause ___ in CNS
|
jacksonian epilepsy
|
|
e. granulosus cysts form ___ the lumen of intestine
|
outside
|
|
cyst formation can take ___ years and can reach size of ___
|
10--20
soccer ball |
|
tests for e. granulosus include
|
serology
skin (casoni) test |
|
___ can be used to kill e. granulosus larvae
|
hypertonic saline
|
|
drugs for e. granulosus
|
praziquantel
benzimidazole |
|
benzimidazole inhibits
|
Glc transport
|
|
DH for hymenolepis nana (2)
|
human
rodents |
|
drugs for h. nana
|
niclosamide
praziquantel |
|
diphyllobothrium latum egg features (2)
|
operculum
knob |
|
d. ___ is endemic to northern europe, d ___ to US, d. ___ to norhtern canada
|
latum
ursi dendriticum |
|
___ deficiency in diphyllobothriasis can cause ___
|
B12
anemia |
|
diphyllobothriasis drugs (2)
|
niclosamide
praziquantel |