INTESTINAL AND ATRIAL FLAGELLATES Flashcards
CYSTS:
- 8-15 um; oval
- 4 nuclei
- Axoneme; parabasal bodies; and remnants of flagella
TROPHOZOITES
-15x10 um
- 2 nuclei
- 9 flagella
- FALLING LEAF MOTILITY
- Prominent sucking discs and axostyle
Giardia lamblia
CYSTS:
- 7-10 um; LEMON / NIPPLE cyst
- 1 nuclei
- Cytostome with curved fibril referred to as SHEPERD`S Crook
TROPHOZOITES
-15x7 um
- 1 nuclei
- 3 flagella
- Corkscrew / Spiral Jerky
- Prominent cytostome with spiral groove
Chilomastix mesnili
CYSTS:
- 6-8 um; Ellipsoidal
- 2 or 4 nuclei
- Bipolar arrangement of nuclei; resembles E. nana cyst
TROPHOZOITES
-8-9 um
- 1 nuclei
- 4 flagella
- JERKY MOTILITY
- One side of the body is flattened
Enteromonas hominis
CYSTS:
- 4-7 um; Ovoid / pyriform
- 1 nuclei
- Cytostome extends above nucleus (BIRD`S BEAK) & resembles C. mesnili
TROPHOZOITES
-6-7um
- 1 nuclei
- 2 flagella
- JERKY MOTILITY
- Cytostome extends ½ the length of body
Retortamonas intestinalis
TROPHOZOITES
-5-15 um
- 1 or 2 nuclei
- No flagella “FLAGELLATE W/O FLAGELLA”
- Amoeboid motlity
- Multiple hyaline, leaf-like pseudopodia; fragmented tetrakaryosome
Dientamoeba fragilis
TROPHOZOITES
- 1 nuclei
- 5 flagella
- RAPID, JERKY, TUMBLING motlity
- Undulating membrane; axostyle extends
beyond the organism’s body;
cytoplasmic granules
P. hominis
T. tenax
T. vaginalis
Giardia lamblia – causes giardiasis or traveler’s diarrhea and has been associated with homosexual men
with ____
GAY BOWEL SYNDROME
– intermittent diarrhea, nausea, vomiting, abdominal pai
D. fragilis
causes non-specific vaginitis, urethritis, or prostatitis
T. vaginalis
“Old Man with Eye glasses”
The only bilateral symetrical flagellates
Giardia lamblia
flagellates found in SMALL intestine
G. lamblia
flagellates found in LARGE intestine
C. mesnili
E. hominis
R. intestinalis
D. fragilis
P. hominis
Atrial flagellates found in buccal cavity
T. tenax
Atrial flagellates found in urogenital tract
T. vaginalis
