review Flashcards
chilomastix mesnili is
more/less
common than other flagella
less common
chilomastix mesnili shape
lemon - nipple like protuberance
single nucleus & karyosome: vesicular type
chilomastix mesnili cyst
shape of chilomastix mesnili trophozoite
asymmetrical pear shaped - due to spiral groove
what is the movement of chilomastix mesnili
corkscrew / boring motion
shape of chilomastix mesnili cyst with cytostome
hour-glass
shape of chilomastix mesnili trophozoite with 1 nucleus and karyosome
karyosome near rounded, anterior end
chilomastix mesnili is
pathogenic
non-pathogenic
non-pathogenic
reproduction of chilomastix mesnili
binary fission
habitat of chilomastix mesnili
colon; lower GIT
infective stage of chilomastix mesnili
cyst
giardia lamblia is
pathogenic
non-pathogenic
pathogenic
what is the shape of giardia lambia cyst
ovoid
what is diagnostic feature of giardia lamblia cyst
- 2 axosomes
- retracted cytoplasm: space between cytoplasm and cyst wall
- 4 nuclei in mature cyst
mature cyst of giardia lamblia have
2 nuclei
4 nuclei
6 nuclei
4 nuclei
infective stage of giardia lamblia
trophozoite
shape of giardia lamblia
- symmetrically pear shaped
- no spiral groove
what is movement of giardia lamblia
tumbling motility - no spiral grove
motility of giardia lamblia
falling leaf
manner of transmission is via
ingestion of the cyst through contaminated food and drink
where does giardia lamblia excytation take place
small intestine
where does trophozoite habitate
- duodenum
- coat or carpet intestinal mucosa
how does giardia lamblia cause malabsroption
coating or carpeting the interstinal mucosal
Steatorrheic or Gruelly stool is due to
malabsorption of fat
special diagnostic tool of giardia lamblia
entero or string test
doc for giardia lablia
metronidazole
5 Parasites in which Trophozoite is Infective Stage
- Entamoeba gingivalis
- Trichomonas tenax
- Trichomonas hominis
- Trichomonas vaginalis
- Dientamoeba fragilis
morphology of dientamoeba fragilis
- granular cytoplasm, irregular shape
- Karyosome in the form of 4-8 beads
- Tetracocci karyosome – 4 karyosome
ingestion of dientamoeba fragilis
thru eggs of enterobius vernicularis
habitat of dientamoeba fragilis
large intestine
3 pathogenic but non invasive
- dientamoeba fragilis
- giardia lamblia
- trichomonas vaginalis
characteristic of dientamoeba fragilis disease
- mucous diarrhea
- due to irriation of intesinal mucosa, mucous secretion
doc for dientamoeba fragilis
metronidazole
shape of trichomonas
ovoidal
infective stage of trichonomas
cyst
trophozoite
trophozoite - no cyst stage
how is trichomonas hominis different from the other trichomonas
- post trailing post end of flagellum
- rigid axostyle
- one granules look like karyosome
- conspicuous cytostome
Parasites that have Cytostome in Cyst and Trophozoite Stage
chilomastix mesnili
since features are hard to find, how do we diagnostically examine
- look where the specimen came from
- proper collection without contamination
“pyuria alveolaris” associated with
trichonomas tenax
habitat of trichonomas tenax
oral cavity
habitat of trichonomas vaginalis
vaginal mucosa or prostate gland
habitat or trichonomas hominis
large intestine
shape of t. tenax trophozoite
ovoidal
pathogenic stage of t. tenax
non pathogenic
what stages of kissing is t. tenax spread
3rd and 4th
infective stage of t. hominis
trophozoite
habitat of t. hominis
large intestin; cecum
this type of patient susceptible to t. hominis
in patient with achlordydria aka without acid
pathogenic stage of t. hominis
non pathogenic
t. vaginalis causes
trichomoniasis
“ping pong infection” associtated with
trichomonoiasis - t. vaginalis
non venereal transmission
- communal bathing
- contaminated toilet seats
- through birth canal
- sharing of douche equipment
doc for t. vaginalis
metronidazole
infective stage is trophozoite
- t. hominis
- t. tenax
- t. vaginalis
- e. gingivalis
- d. fragilis
3 organisms with cytostome
c. mesnili - cyst and trophozoite
e. coli - trophozoite
t. hominis - conspicuous
