protozoa- amoeba pictures
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19 Terms
Entamoeba histolytica trophozoite
(10-20 um): 1 nucleus, small central karyosome with even chromatin, RBC’s cytoplasmic inclusion
Entamoeba histolytica cyst
(10-20 um): 1, 2, or 4 nuclei, small central karyosome with even chromatin, cigar-shaped chromatid body
Entamoeba dispar trophozoite
no RBCs present
Entamoeba dispar cyst
similar to e histolytica
Entamoeba hartmanni troph
smaller (<10 um)
Entamoeba hartmanni cyst
smaller (<12 um)
Entamoeba coli troph
ingested bacteria
Entamoeba coli cyst
sharp, pointed chromatoid bodies, up to 8 nuclei
Entamoeba polecki troph
Entamoeba polecki cyst
1 nucleus, large glycogen “inclusion mass”, multiple chromatid bodies
Entamoeba gingivalis troph
ingested epithelial cells and wbc’s
Blastocystis hominis cyst
large vacuole (stains red), nuclei near rim
Endolimax nana troph
6-12um; smallest amoeba
Endolimax nana cyst
‘cookies for nana’
Iodamoeba butschlii troph
similar to e nana
Iodamoeba butschlii cyst
glycogen vacuole, basket nucleus
Acanthamoeba spp troph
in brain tissue
Acanthamoeba spp. cyst
in brain tissue; hall’s coccus
Naegleria fowleri
found in csf
Note 
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