Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

IntrotoParasitology

lecture 30 lee

QuestionAnswer
2 forms of protozoa cyst and trophozoite
trophozoite actively feeding organisms in the host niche
protozal cysts metabolically inactive form that can survive under very unfavorable conditions, resistant to chlorination and drying
2 organisms that DO NOT HAVE cyst form Dientamoeba fragilis and Trichomonas vaginalis
schizogony in protozoa binary fission or asexual reproduction in humans
sporogony in protozoa sexual reproduction, usually restricted to within insect vectors
how to dx intestinal protozoa stool O&P - using wet mount with saline or iodine or trichome staining
protozoa that stain with acid-fast agents Cryptosporidium, Isospora, Cyclospora (sporozoans)
most common protozoal infection in the US Giardia lamblia
early vs late Trypanosoma cruzi infection Chagas dz: early - parisitemia with nonfocal fever syndrome; late - aka 1-2 decades later, cardiomyopathy and arrhythmias, megacolon or esophagus
characteristics of Plasmodium on blood smear look like headphones (just as Babesia does) within the RBCs, banana-shaped gametocyte
the only helminth that multiplies within the human host Strongyloides stercoralis, means larvae can be found in stool!! (not eggs)
characteristic systemic changes that reflect parasite responses eosinophilia (characteristic of migrating worms), edema, arthralgia
pinworms (Enterobius vermicularis) infect young children and cause nocturnal anal pruritis, eggs will stick to scotch tape
Loeffler's syndrome cough, dyspnea, hemoptysis, eosinophilic pneumonitis can occur during the lung phase of larval migration; you cough up sputum and swallow it then the roundworms get to GI tract
most common helminth infection in humans roundworks (Ascaris lumbricoides)
how hookworms infect larvae in soil penetrate skin in foot perhaps, attach to intestine and eggs are in stool
Diphyllobothrium latum fresh water FISH (sushi) and perNISHous anemia
cysticercosis humans eat eggs of Taenia solium, common cause of sz in endemic areas especially in young adults
cause of swimmer's itch blood flukes or Schistosomes that invade humans accidentally; they live in fresh water. remember - worse on repeat exposure
forms Maltese crosses/tetrads, causes hemolytic anemia and is endemic to Martha's Vineyard or the East Coast Babesi microti
Created by: sirprakes
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards