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41 Cards in this Set

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What is the vector for Plasmodium?
Anopheles mosquitoes
Which Plasmodium is the deadliest?
P. falciparum
Where is P. vivax not found?
West Africa
Which Plasmodium don't have a latent form in liver? (2)
P. falciparum, P. malariae
Which Plasmodium have a latent form in the liver? (2)
P. vivax, P. ovale
What is the vector for Babesia?
Ixodes tick
Which Plasmodium has "banana-shaped" gametocytes, applique' forms, dual infected cells, and dual chromatin dots?
P. falciparum
Which Plasmodium has "amoeboid" trophozoites, Schuffner's granules, and 12-20 merozoites per schizont?
P. vivax
Which Plasmodium has heavy, blocky trophozoites, "band" forms, 8-12 merozoites per schizont, heavy malarial pigment, and "rosette" forms?
P. malaria
Which Plasmodium has oval RBC containing trophozoites, prominent Schuffner's granules, and 6-14 merozoites per schizont?
P. ovale
What organism has small, pleomorphic rings (<20% diameter of RBC), "Maltese Cross" forms, and many ring forms.
Babesia
What is the vector for Trypanosoma brucei?
Tsetse fly (Glossina spp.)
What is the geographic distribution of Trypanosoma brucei gambiense? Trypanosoma brucei rhodesiense?
Trypanosoma brucei gambiense: West and Central Africa

Trypanosoma brucei rhodesiense: East and Southeast Africa
What organism has this morphology? Extracellular flagellates found in blood, marrow, and node aspirates?
Trypanosoma

NOTE: T. brucei has dividing forms while T. cruzi doesn't. T. cruzi has prominent kinetoplast.
What is the vector for Trypanosoma cruzi?
Reduviid bug ("kissing bug")
Vector for Leishmania?
Sandfly
How is Toxoplasma transmitted?
Cat feces, undercooked meat
What is the vector for Onchocerca volvulus?
Black fly
What is the vector for Loa Loa?
Horse fly or Deer fly
Where do Onchocerca volvulus live in the human?
Subcutaneous nodules
Where do Loa Loa live in the human?
Cornea and subcutaneous tissue
What filaria is this?
Sheathed, nuclei stop short of end of tail.
Wuchereria bancrofti
What filaria is this?
Sheathed, two small nuclei in tail.
Brugia malayi
What filaria is this?
Unsheathed, from skin, not blood. No nuclei in tail.
Onchocerca volvulus
What filaria is this?
Sheathed, nuclei to continue to end of tail.
Loa loa
What is another name for Enterobious vermicularis?
pinworm
What is another name for Tricuris triciuria?
whipworm
What type of worm is Ancylostoma duodenale and what is its geographic distribution?
Ancylostoma duodenale:
Hookworm
Africa, China, Japan, India
What type of worm is Necator americanus and what is its geographic distribution?
Necator americanus:
Hookworm
Worldwide
How is hookworm transmitted?
Larvae penetrate skin, then migrate to lungs and are swallowed. Mature in the intestines and you poop out their eggs.
Which is the largest and most prevalent of the intestinal worms?
Ascaris lumbricoides
How is Strongyloides stercoralis transmitted?
Larvae penetrate skin, then migrate to lungs and are swallowed. Mature in the gut and lays eggs. Some penetrate gut wall, make it back to the lungs and get swallowed.
What is the geographic distribution of Schistosoma mansoni?
Schistosoma mansoni:
Africa
Middle East
South America
Caribbean
What is the geographic distribution of Schistosoma japonicum and mekongi?
Schistosoma japonicum and mekongi:
SE Asia
China
Philippines
What is the geographic distribution of Schistosoma haematobium?
Schistosoma haematobium:
Africa
Middle East
All Schistosoma must live in what animal?
Snails
Which Schistosoma infect the GI tract? Bladder?
GI Tract: S. mansoni, japonicum, mekongi

Bladder: S. hematobium
Describe the eggs of the Schistosoma:
1. S. mansoni
2. S. hematobium
3. S. japonicum
1. S. mansoni: prominent lateral spine
2. S. hematobium: terminal spine
3. S. japonicum: small or absent lateral spine
All Schistosoma must live in what animal?
Snails
Which Schistosoma infect the GI tract? Bladder?
GI Tract: S. mansoni, japonicum, mekongi

Bladder: S. hematobium
Describe the eggs of the Schistosoma:
1. S. mansoni
2. S. hematobium
3. S. japonicum
1. S. mansoni: prominent lateral spine
2. S. hematobium: terminal spine
3. S. japonicum: small or absent lateral spine