Chapter 4 Flashcards
What animals are Chilomastix mesnili found in
humans, monkeys, pigs
Where in the body are Chilomastix mesnili found
cecum and colon
What diseases do Chilomastix mesnili cause?
non pathogenic, important because its confused with other pathogenic species
What is the structure of Opalina like?
flagellate, endoplasm and extoplasm, falx: field of kinetosomes
What animals are opalina found in, what makes them special
amphibians, reproductive cycles are controlled by the host
How do Opalina reproduce
rapid binary fission, cysts pass in feces, eaten by tadpoles, M and F gametes form zygotes which is triggered by hormones in frog urine
What animals are Histomonas meleagridis in
fowls: chickens, turkey
What symptoms do Histomonas meleagridis cause
blackhead: skin turns black, drooping wings, yellow droppings, young die faster, lesions in ceca, inflammatory changes, ulceration, liver lesions.
How is Histomonas meleagridis diagnosed
combo of liver and cecal lesions, they are pathoognomic
What are the definitive and intermediate hosts of Histomonas meleagridis
definitive: fowls: chicken, turkey, pheasants
Intermediate hostss: nematode heterakis gallinarum
How is histomonas meleagridis treated
nitarsone in food
What symptoms does Dientamoeba fragilis cause, who do they infect
humans: diarrhea, stomach pain, cramping, appetite loss, weight loss, nausea, fatigue, does not spread
What stages does Dientamoeba fragilis have?
only troph
How is Dientamoeba fragilis treated and diagnosed
fecal float to find nematode eggs
iodoquinol, paramomycin, tetracycline, metronidazole, really curable
