Chapter 4: Flagellates

Subdecks (1)

Cards (37)

  • Flagellate belong to the phylum protozoa and are member of of the subphylum mastigophora.
  • Intestinal species
    • Giardia intestinalis
    • Chilomastix mesnili
    • Dientamoeba fraginalis
    • Trichomonas hominis
    • Enteromonas hominis
    • Retortamonas intestinalis
  • Extraintestinal species
    • Trichomonas tenax
    • Trichomonas vaginalis
  • GIARDIA LAMBLIA
    ( CYST )
    • SIZE : 8-15 um
    • SHAPE: oval
    • NUCLEI: 4
    • FEATURES: axoneme; parabasal bodies; remnant of flagella
  • CHILOMASTIX MESNILI
    ( CYST)
    • SIZE: 7-10 um
    • SHAPE: lemon or nipple shaped
    • NUCLEI: 1
    • FEATURES : curved fibril alongside of cytostome refered as " shepherd crook "
  • Enteromonas hominis
    ( CYST )
    • SIZE : 6-8 um
    • SHAPE : ellipsoid
    • NUCLEI : 2-4
    • FEATURES : bipolar of nuclei resembles E. nana cyst
  • Retortamonas intestinalis
    ( CYST )
    • SIZE : 4-7 um
    • SHAPE : ovoid or pyriform
    • NUCLEI : 4-7
    • FEATURES : cytostome extends above nucleus, resembles C. mesnili cyst
    • ( bird beak appearance)
  • CHILOMASTIX MESNILI
    (Trophozoite )
    • SIZE: 15-7 um
    • MOTILITY: Spiral/ rotary
    • NUCLEI: 1
    • FLAGELLATE : 4
    • FEATURES: prominent cytostome with spiral groove
  • ENTEROMONAS HOMINIS (Trophozoite)
    • SIZE : 8-9 um
    • MOTILITY: jerky
    • NUCLEI: 1
    • FLAGELLA: 4
    • FEATURES : one sided flattened
  • RETORTAMONAS INTESTINALIS
    (Trophozoite)
    • SIZE : 6-7 um
    • MOTILITY: jerky
    • NUCLEI: 1
    • FLAGELLA: 2
    • FEATURES : cytostome extends 1/2 the length of body
  • DIENTAMOEBA FRAGILIS
    ( TROPHOZOITE )
    • SIZE : 5-15 um
    • MOTILITY: nonprogressive
    • NUCLEI: 1-2
    • FLAGELLA: --
    • FEATURES : multiple hyaline leaf like pseudopodia nucleus has fragmented
  • TRICHOMONAS HOMINIS
    ( TROPHOZOITE)
    • SIZE : 7-13 um
    • MOTILITY: Rapid jerky tumbling
    • NUCLEI: 1
    • FLAGELLA: 5
    • FEATURES : long undulating membrane axostyle and fine , scattered granules
  • GIARDIA LAMBLIA
    (Trophozoite)
    • SIZE : 15-10 um
    • MOTILITY: falling leaf
    • NUCLEI: 2
    • FLAGELLA: 8
    • FEATURES : prominent sucking disc and axostyle
    • ( Old man w/ eyeglasses)
  • Giardia lamblia - can cause giardiasis, lambliasis or traveler's diarrhea and has been associated with homosexual man with gay bowel syndrome
  • Dientamoeba fragilis - intemittent diarrhea, nausea, vomiting, abdominal pain
  • Trichomonas vaginalis - cause nonspecific vaginalis, urethritis or prostatitis, foul-smelling discharge.
  • Trichomonas tenax
    SIZE: 5-12 um
    AXOSTYLE: thick
    UNDULATING MEMBRANE: almost as long as costa
    INCLUSION : few discrete granules
  • Trichomonas hominis
    • SIZE: 7-13 um
    • AXOSTYLE: semi-grid
    • UNDULATING MEMBRANE: as long as Acosta
    • INCLUSION : fine, scattered granules
  • Trichomonas vaginalis
    • SIZE: 7-23 um
    • AXOSTYLE: split into fibrils
    • UNDULATING MEMBRANE: 2/3 pr 1/2 of costa
    • INCLUSION : large amount of sliderophile granules