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