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115 Cards in this Set
- Front
- Back
Amoeba reproduce by |
binary fission |
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Transmission of amoeba is generally by |
ingestion of the cyst phase in contaminated water |
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Stain to visualize and identify amoeba |
trichrome |
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cause of amoebic dysentery |
Entamoeba histolytica |
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a rod shaped structure of condensed RNA inside the cytoplasm of some amoeba cysts |
chromatoid body (or bar) |
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Amoeba's non-motile, usually infective stage, non-feeding. it's wall protects the organism from drying |
cyst |
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a disorder marked by bloody diarrhea and/ or mucus in the feces |
dysentery |
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the small mass of chromatin within the nucleus, comparable with the nucleolus |
endosome or karyosome |
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a cytoplasmic extension that allows the amoeba trophozoite to move and engulf food |
pseudopod |
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the motile, reproducing, feeding stage of the amoeba. generally lives in the lower GI tract |
trophozoite |
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Entamoeba histolytica troph |
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Entamoeba histolytica trophozoite |
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Entamoeba histolytica trophozoite |
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Entamoeba histolytica trophozoite |
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Entamoeba histolytica trophozoite |
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Entamoeba histolytica trophozoite |
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Entamoeba histolytica cyst |
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Entamoeba coli trophozoite |
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Entamoeba coli trophozoite |
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Entamoeba coli cyst |
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Entamoeba coli cyst |
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Iodamoeba butschlii |
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Blastocystis hominis |
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Blastocystis hominis |
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Blastocystis hominis |
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Endolimax nana trophozoite |
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Endolimax nana cyst |
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Endolimax nana cyst |
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Naegleria fowleri |
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Acanthamoeba in GAE |
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Balantidium coli cyst |
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Balantidium coli trophozoite |
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can be sexually transmitted |
E. histolytica |
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a commensal |
E. dispar |
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unless trophozoites are seen with ingested RBCs _____ and _______ are identical |
E. histolytica and E. dispar |
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invades the intestinal wall and multiplies in the mucosal tissue |
E. histolytica |
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trophozoites can invade the intestinal wall and cause ulceration of other tissues after spreading through the blood stream |
E histolytica, E. dispar |
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similar to E. histolytica but small |
E. hartmani |
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anaerobic parasite; doesn't seem to cause disease- but must be considered if seen in large numbers |
Blastocystis hominis |
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humans become infected after swimming in infected ponds and lakes |
Naegleria fowleri |
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amoeba more motile at 35 C, warming media will increase motility |
N. fowleri |
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disease is rapid and fatal within a week |
Primary Amoebic Microencephalitis- Naegleria fowleri |
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enters through nasal passages, travels along olfactory nerves to the brain |
Naegleria fowleri |
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lesions in brain tissue may contain cysts and trophs |
granulomatous amebic encephalitis |
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infection caused by inhalation of dust and aerosols |
GAE |
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cause of GAE |
Acanthamoeba spp. |
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traced to using contaminated saline cleaning solutions with contact lenses, or swimming in contaminated water while wearing contacts |
Acanthamoeba keratitis |
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Largest parasitic protozoan |
Balantidium coli |
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Has a well developed oral cytostome (rudimentary mouth) |
Balantidium coli |
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Multiply asexually and by conjugation with exchange of micronuclei |
Balantidium coli |
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Invades tissues producing lesions along the intestinal submucosa |
Balantidium coli |
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Intracellular portion of the flagella |
axoneme |
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The axial rod that supports the flagella |
axostyle |
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A thin firm rod like structure that supports the undulating membrane |
costa |
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A membrane with a flagellar rim that extends out from the body of the flagellate. |
undulating membrane |
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which flagellate has no cyst |
Trichomonas hominis |
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needed to diagnose Giardia lamblia |
trophs or cysts in the feces |
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falling leaf motility |
Giardia lamblia |
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Giardia lamblia |
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Giardia lamblia |
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Giardia lamblia cyst |
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Giardia lamblia cyst |
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Chilomastix mesnili |
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Chilomastix mesnili |
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Dientamoeba fragilis |
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Dientamoeba fragilis |
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Dientamoeba fragilis |
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Trypanosoma brucei |
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Trypanosoma brucei |
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Trypanosoma cruzi |
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Trypanosoma cruzi |
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Trypanosoma cruzi |
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leishmania. amastigote in macrophages are diagnostic |
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leishmania. amastigote in macrophages are diagnostic |
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Trichomonas vaginalis |
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Trypanosome diagnostic stage |
trypomastigote |
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trypanosome intermediate host |
arthropod |
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arthropod vector of Trypanosoma brucei/ gambiense and Trypanosoma brucei rhodiense |
Tsetse fly |
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Trypanosoma brucei/ gambiense and Trypanosoma brucei rhodiense cause the disease |
West and East Africa Sleeping Sickness |
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central nervous system involvement in disease is faster with which? Trypanosoma brucei/ gambiense or Trypanosoma brucei rhodiense |
T. brucei rhodiense |
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Trypanosoma cruzi Trypomastigote |
tend to be C or S shaped |
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Trypanosoma cruzi: trypanomastigotes are found in |
heart, muscle, liver, or CNS in macrophages |
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arthropod intermediate host of Trypanosoma cruzi |
reduviid bug |
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trypanomastigotes of T.cruzi are deposited __________ after it takes a blood meal |
in the feces from the bug |
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T. cruzi is found in which geographical locations |
Found primarily in Mexico, Central America and South America, cases have been reported in Texas and California |
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how can T. cruzi be transmitted |
trans placentally |
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method to identify T. cruzi |
xenodiagnosis |
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T. cruzi causes |
Chagas disease, Romana;s sign- swollen eye |
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Kissing Bug |
Chagas Disease. Trypanosoma cruzi |
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New World Leishmaniasis |
Leishmania brasiliensis |
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Old World Leishmaniasis, Oriental, Baghdad and Delhi Boil |
Leishmania tropica |
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diagnostic stage of Leishmania |
amastigote in macrophages aspirated from lesion site |
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Leishmania intermediate host |
sandfly |
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zoonotic infection |
leishmania |
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diseases of Leishmania donovani |
Visceral Leishmaniasis, Kala-azar, Dumdum fever |
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how soon will you die from Leishmania donovani if not treated? |
2 years |
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Leishmania donovani infects |
macrophages throughout organs throughout the body |
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cutaneous Leishmaniasis |
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Visceral Leishmaniasis |
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how is Trichomonas vaginalis identified? |
motile trophs must be identified in fresh urethral discharge or urine sample. can also be identified on PAP smear |
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Trichomonas vaginalis motility is described as |
jerky or rippling |
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Trichomonas vaginalis symptoms in men are |
non-symptomatic |
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Thrichomonas vaginalis cyst |
has none |
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Intestinal amoeba |
Entamoeba histolytica, Entamoeba dispar, Entamoeba hartmani, Entamoeba coli, Endolimax nana, Iodamoeba buschlii, Blastocystis hominis |
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Intestinal flagellate |
Giardia lamblia, Chilomastix mesnili, Dientamoeba fragilis, Balantidium coli |
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Intestinal sporozoan |
Cryptosporidium parvum, Isopora belli, Sarcocystis sp., Cyclospora cayatenensis, Microsporidia |
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Blood flagellate |
Trypanosoma cruzi, Trypanosoma brucei |
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Blood sporozoan |
Plasmodium vivax, Plasmodium ovale, Plasmodium malariae, Plasmodium falciparum, Babesia microti |
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Urinary/ Vaginal flagellate |
Trichomonas vaginalis |
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cutaneous flagellate |
Leishmania (tropica and mexicana complex) |
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mucocutaneous flagellate |
Leishmania brazilliensis complex |
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Internal organs flagellate |
Leishmania donovani complex |
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Internal organ sporozoan |
Toxoplasma gondii |
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Lungs sporozoans |
Pneumocystis carnii (fungus) |
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Free living/ Central Nervous amoeba |
Naegleria fowleri, Acanthamoeba |