Ameba Flashcards
(41 cards)
From cyst to trophozoite
Excystation
Often referred to as false feet which allows ameba to move within their environment
Pseudopods
Morphologic forms in the amebic life cycle
Trophozoites
Cysts
The nonfeeding stage characterized by a thick protective cell wall designed to protect the parasite from the harsh outside environment when deemed necessary
Cysts
Characteristically delicate and fragile and, because of their ability to produce and use pseudopods, motile
Trophozoites
From trophozoite to cyst
Encystation
Only ameba considered to be pathogenic
E. Histolytica
Lowest form of animals
Protozoan
E. Histolytica motility
Unidirectional
Finger like
Morphologically identical to E. Histolytica
E. Dispar
Dirty looking trophozoite
E. Coli
1st ameba recovered from a human specimen
Entamoeba gingivalis
This characteristic differentiate E. Histolytica from E. Hartmanni
Size
Small races of E. Histolytica
E. Hartmanni
Most common commensal
Entamoeba coli
Motility of E. Coli
Explosive
Parasites of pig and monkey
E. Polecki
Smallest ameba
Endolimax nana
Presence means fecal contamination of water supply
E. Coli
With ingested WBC
Entamoeba gingivalis
Motility of flagellate forms of N. Fowleri
Jerky or spinning motility
The form that feeds, multiplies, and possesses pseudopods
Trophozoites
Cross eyed karyosome
Endolimax nana
Recovered in patients suffering from pyorrhea alveolaris
Entamoeba gingivalis
