4.2 Other Flagellates Flashcards
three types of intestinal & urogenital flagellates
- trichomonas
- giardia
- chilomax
what is the most common protozoan intestinal disease
giardiasis - caused by giardia lamblia
habitat of giardia lamblia
duodenum and upper jejunum
infective stage of giardia lamblia
immature cyst
mature cyst
trophozoite
mature quadrinucleate cyst
the infective giardia lamblia cyst is
binucleated
quadrinucleated
quadrinucleated
pathogenic stage of giardia lambia
immature cyst
mature cyst
trophozoite
active trophozoite
diagnostic stage of giardia lamblia
immature cyst
mature cyst
trophozoite
mature cyst AND trophozoite in feces
mode of infection
contaminated food
giardia lambia trophozoite stage is shaped like
kite
leaf
pear
pear shaped - old man’s face
giardia lambia trophozoite has how many?
- flagella
- axostyle
- sucking disc
- nucleus
- basal bodies
- flagella (8)
- axostyle (2)
- sucking disc (2) - anterior/ventral
- nucleus (2)
- basal bodies (2)
what two structures are found in both giardia lamblia trophozoite and cyst
2 axostyles
2 parabasal bodies
giardia lamblia cyst has how many
- flagella
- axostyle
- sucking disc
- nucleus
- basal bodies
- flagella (0)
- axostyle (2)
- sucking disc (2) - anterior ventral
- nucleus (4)
- basal bodies (2)
how does giardia lamblia divide
binary fission
child shows signs of malnutrition. stool sample is negative to blood or necrotic tissue. history indicates nausea and diarrhea.
what is the infection?
giardia lamblia
what is the chronic pathology of giardia lamblia
covering of the epithelium by the trophozoite causing malabsorption of nutrients
child comes in with abdominal pain and distention. stool sample is negative to blood and positive to lipid. no fever
giardia lamblia