EXAM 3 PRACTICE Flashcards
Which parasite causes rectal prolapse?
Trichuris trichiura
Which parasite causes severe IgE?
Anisakis simplex
What parasite is going to come out of you when there are no males present?
Enterobius vermicularis
What parasite is going to always produce pathogenic females?
Strongyloides stercoralis
What parasite can house flies be mechanical vectors for?
Trichuris trichiura
What is the target organ for Trichinella spiralis?
Small intestine
What parasite is going to attack the ileocecal region of the small intestine?
Enterobius vermicularis
Which parasite has diurnal periodicity?
Loa loa
When would you test for Wucheria Bancrofti?
At night
How do you contract Loa Loa?
A deer fly bites you
What does Loa loa affect?
Subcutaneous tissue
Which parasite can result in lymphedema and hydrocele?
Wucheria bancrofti
Lymphedema and hydrocele are a part of what phase?
Inflammatory/acute phase
What parasite causes elephantiasis?
Wucheria bancrofti
What parasite can cause intestinal blockage?
Ascaris lumbricoides
What organ does Dipylidium caninum affect?
Small intestine
Where do Strongyloides stercoralis molt twice?
In the lungs
What are the reservoir hosts for Strongyloides stercoralis?
Dogs and cats
What temperature is necessary for Strongyloides stercoralis to be free living?
Less than 34 degrees Celsius
How do you get Ascaris lumbricoides?
Night soil
Where do the eggs hatch for Ascaris lumbricoides?
In the duodenum
Where do the eggs for Ascaris lumbricoides molt twice?
In the lungs
What does Wolbachia cause if a worm dies in your eye?
Sclerosing keratitis
What does Onchocerca volvulus attack?
The skin
Where is microfilaria for Onchocerca volvulus mostly found?
In the tissue
What parasite exhibits ‘ground itch’ and in what phase?
Ancylostoma duodenale in the cutaneous phase
What parasite affects the tissue?
Loa loa
What is a major symptom of Loa loa?
Infection of deep tissue and fatal encephalitis
Which parasite is going to cause ‘anal itch’?
Enterobius vermicularis
What is the optimal temperature for Ancylostoma duodenale juveniles?
23 to 30 degrees Celsius
Which parasite uses uroconic acid?
Strongyloides stercoralis
What are the 3 stages in T. brucei?
T.b. brucei, T.b. gambiense, and T.b. rhodesiense
What causes T. brucei?
The tse tse fly
What does T. brucei target?
Cerebral spinal fluid
What are the reservoir hosts for T. cruzi?
Dogs, cats, opossums, armadillos, and wood rats
How do you contract Leishmania donovani?
Sand fly
What parasite causes nagana in livestock?
T. brucei
Which parasite forms a pseudocyst in its lifecycle?
T. cruzi
Which parasite is the HIV of the Americas?
T. cruzi
What parasite is the disease Kala Azar associated with?
Leishmania donovani
What parasite exhibits winterbottom’s sign?
T. brucei
What are the reservoir hosts for Giardia lamblia?
Beavers, dogs, cats, and sheep
Which parasite is an STD?
Trichomonas vaginalis
What parasite will exhibit a chagoma?
T. cruzi
What parasite can cause the gallbladder to become infected causing jaundice and colic?
Giardia lamblia
What is the infectious stage for Trichomonas vaginalis?
Trophozoite
What parasite will exhibit Romana’s sign?
T. cruzi
How do trophozoites divide?
By binary fission
