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

    <p>Entamoeba POLECKI</p> 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

    <p>Entamoeba HISTOLYTICA</p> 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

    <p>NAEGLERIA FOWLERI</p> 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

    <p>Entamoeba GINGIVALIS</p> 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

    <p>ACANTHAMOEBA SPP</p> 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

    <p>IODAMOEBA BUSTCHLII</p> Signup and view all the answers

    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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    Description

    Identify the characteristics of cysts, including their shape, nuclei, karyosome, peripheral chromatin, and cytoplasm. Learn about the features of cysts and their variations. Test your knowledge of cyst morphology.

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