Protozoa: Amoeba Flashcards
Acanthamoeba species (Trophozoite)
sluggish motility
spine-like pseudopods
Nucleus: PC absent, large karyosome
Cytoplasm: granular and vacuolated
Acanthamoeba Species (Cyst)
Nucleus: 1, PC absent, large central karyosome
Cytoplasm: granular, vacuolated.
Double cell wall
Naegleria Fowleri (Trophozoite)
Sluggish motility
Blunt pseudopods
Nucleus: PC absent, large centered karyosome
Cytoplasm: Granular, vacuolated
Naegleria fowleri (Cyst)
NONE!!
Entamoeba histolytica (Troph)
progressive, rapid motility
Nucleus: Fine even PC (peripheral chromatin), Central karyosome
Cytoplasm: clean appearance.
RBC inclusions are DIAGNOSTIC.
Entamoeba histolytica (cyst)
Nucleus: 4. PC fine, even. Karyosome centered
Cytoplasm: chromatoid bar that are cigar shaped
Entamoeba coli (troph)
sluggish, nondirectional
Nucleus: Clumped, uneven PC. Karyosome off to one side
Cytoplasm: dirty, may include bacteria, yeast, or debris
Entamoeba coli (cyst)
Nucleus: 8. clumped, uneven PC. eccentric Karyosome
Cytoplasm: chromatid bars, splinter shaped.
Entamoeba hartmanni (troph)
nonprogressive motility
nucleus: fine evn PC, central karyosome
Cytoplasm: clean appearance. bacteria can be included. NO RBCs
Entamoeba hartmanni (Cyst)
Nucleus: 4. fine, even PC. central K
Cytoplasm: chromatid bars are cigar shaped
Endolimax nana (troph)
sluggish
nonprogressive
Nucleus: PC absent, large irregular, blotliike karyosome
cytoplasm: granular, vacuolated, may have bacteria
Endolimax nana (Cyst)
Nucleus: 4. absent PC. large irregular blotlike karyosome
cytoplasm: granular, vacuolated
Iodamoeba butschlii (troph)
sluggish, nonprogressive
Nucleus: PC absent, large eccentric karyosome. achromatic granules
Cytoplasm: coarsely granular
vacuolated, bacteria, yeast, and debris present
Iodamoeba butschlii (Cyst)
Nucleus:1. absent PC, enlarged eccentric karyosome, achromatic granules
Cytoplasm: large glycogen vacuole
Blastocystis hominis (troph)
NONE!
