protozoan cyst

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Questions and Answers

SHAPE: ROUND TO SPHERICAL NUCLEI: 1-8 KARYOSOME: large, irregular, and eccentric PERIPHERAL CHROMATIN: unevenly distributed CYTOPLASM: coarse and granulated CYTOPLASMIC INCLUSIONS *OTHER INFOS: THIN CHROMATOID BARS WITH POINTED SPLINTERED ENDS

Entamoeba COLI (correct)
ACANTHAMOEBA SPP
Entamoeba HARTMANNI
Entamoeba POLECKI

SHAPE: SPHERICAL NUCLEI: 1-4 KARYOSOME: small and central PERIPHERAL CHROMATIN: fine and evenly distributed CYTOPLASM: finely granulate CYTOPLASMIC INCLUSIONS *OTHER INFOS: chromatoid bars, rounded ends in young cysts

ENDOLIMAX NANA
Entamoeba COLI
Entamoeba GINGIVALIS
Entamoeba HARTMANNI (correct)

SHAPE: SPHERICAL/ OVOID ELLIPSOID NUCLEI: 1-4 USUALLY 4 KARYOSOME: large, irregular, and blotlike PERIPHERAL CHROMATIN: absent CYTOPLASM: granular and vacuolated CYTOPLASMIC INCLUSIONS *OTHER INFOS: nondescript small mass

NAEGLERIA FOWLERI
ENDOLIMAX NANA (correct)
Entamoeba POLECKI
Entamoeba HARTMANNI

SHAPE: SPHERICAL OR OVAL NUCLEI: 1 KARYOSOME: small and central PERIPHERAL CHROMATIN: fine and evenly distributed CYTOPLASM: granular and vacuolated CYTOPLASMIC INCLUSIONS *OTHER INFOS: angular chromatoid bards or pointed ends in young cysts

Entamoeba POLECKI (C) Signup and view all the answers

SHAPE: SPHERICAL TO ROUND NUCLEI: 1-4 KARYOSOME: small and central PERIPHERAL CHROMATIN: fine and evenly distributed CYTOPLASM: finely granulate CYTOPLASMIC INCLUSIONS *OTHER INFOS: chromatoid bars, rounded ends in young cysts

Entamoeba HISTOLYTICA (B) Signup and view all the answers

SHAPE: ROUND AND THICK CELL WALLS NUCLEI: 1 KARYOSOME: large and usually centrally located PERIPHERAL CHROMATIN: absent CYTOPLASM: granular and usually vacuolated CYTOPLASMIC INCLUSIONS *OTHER INFOS: often contains vacuoles

NAEGLERIA FOWLERI (C) Signup and view all the answers

SHAPE: x NUCLEI: x KARYOSOME: x PERIPHERAL CHROMATIN: x CYTOPLASM: x CYTOPLASMIC INCLUSIONS *OTHER INFOS: no one cyst form of the parasite

Entamoeba GINGIVALIS (A) Signup and view all the answers

SHAPE: ROUNDISH WITH RAGGED EDGES NUCLEI: 1 KARYOSOME: large PERIPHERAL CHROMATIN: granular and vacuolated CYTOPLASM: granular and usually vacuolated CYTOPLASMIC INCLUSIONS *OTHER INFOS: double cell wall

ACANTHAMOEBA SPP (A) Signup and view all the answers

SHAPE: OVOID, ELLIPSOID, TRIANGULAR, OTHERS NUCLEI: 1 KARYOSOME: large, usually central refractive acromatic granules may/not be present PERIPHERAL CHROMATIN: absent CYTOPLASM: coarsely granular and vacuolated CYTOPLASMIC INCLUSIONS *OTHER INFOS: well defined glycogen mass

IODAMOEBA BUSTCHLII (D) Signup and view all the answers

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Study Notes

Shape and Nuclei

Round to spherical shape with 1-8 nuclei
Spherical shape with 1-4 nuclei, small and central karyosome
Spherical/ovoid ellipsoid shape with 1-4 nuclei, usually 4, large and irregular karyosome
Spherical or oval shape with 1 nucleus, small and central karyosome
Spherical to round shape with 1-4 nuclei, small and central karyosome
Round and thick cell walls with 1 nucleus, large and centrally located karyosome
x shape with x nuclei, no specific karyosome description
Roundish with ragged edges shape with 1 nucleus, large karyosome
Ovoid, ellipsoid, triangular, and other shapes with 1 nucleus, large and usually central karyosome

Karyosome

Large, irregular, and eccentric karyosome
Small and central karyosome
Large, irregular, and blotlike karyosome
Small and central karyosome
Large and usually centrally located karyosome
No specific karyosome description
Large karyosome
Large, usually central refractive acromatic granules may or may not be present

Peripheral Chromatin

Unevenly distributed peripheral chromatin
Fine and evenly distributed peripheral chromatin
Absent peripheral chromatin
Fine and evenly distributed peripheral chromatin
Absent peripheral chromatin
Granular and vacuolated peripheral chromatin
Absent peripheral chromatin

Cytoplasm

Coarse and granulated cytoplasm
Finely granulated cytoplasm
Granular and vacuolated cytoplasm
Granular and usually vacuolated cytoplasm
Finely granulated cytoplasm
Granular and usually vacuolated cytoplasm
Coarsely granular and vacuolated cytoplasm

Cytoplasmic Inclusions

Thin chromatoid bars with pointed splintered ends
Chromatoid bars with rounded ends in young cysts
Nondescript small mass
Angular chromatoid bars or pointed ends in young cysts
Chromatoid bars, rounded ends in young cysts
Often contains vacuoles
No specific cytoplasmic inclusions
Double cell wall
Well-defined glycogen mass

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