parasitology lab #3 Flashcards
(42 cards)
What are two types of microparasites
Trophozoites and Cysts
Cysts characteristics
- are infectious
- quiescent /dorment
- found in HARD stool
Trophozoites chraracteristics
- not infectious
- actively dividing
- found in SOFT stool
what are the Def. and Inter. host of Giardia lamblia?
Def. = Humans Inter. = none
What is the target organs of Giardia lamblia?
Duodenum
What is the infectious stage of Giardia lamblia?
Cyst
How do you get infected with Giardia lamblia?
- Fecal/Oral contamination
- contaminated H20/produce
- STD/STI
what is the symptom of having Giardia lamblia?
Severe Diarrhea and Vomit
What are the Def. and Inter. host of Trichomonas vaginalis ?
Def. = Humans Inter. = None
What is the target organ of Trichomonas vaginalis ?
Vagina for woman
Urogenital for man and woman
what is the infectious stage of Trichomonas vaginalis?
Trophozoite
How do you get infected with Trichomonas vaginalis?
- STD/STI
- soiled towel + wash cloths
What are common symptoms of Trichomonas vaginalis?
- Leukorrhea for woman (Discharges of white blood cells)
- Urethritis / prostatitis for man
how do you get infected with amoebas?
fecal/oral contamination
What is the Def. and the Inter. host of Amoebas?
Def. = Humans Inter. = None
What are the target organs of the Amoebas?
Cecum + Colon (large intestine)
What is the infectious stage of Amoebas?
Cyst
Which Amoebas is the most dangerous ?
Entamoeba histolytica
What is the Target organ of the Ciliate?
Large intestine
Which Ciliate causes infection/pathology to humans?
Balantidium coli
What are morphologies of each Trypanosomatidae ?
- Trypomastigote
- Epimastigote (only in insect vectors)
- Promastigote
- Amastigote
What are the Def. and the Inter./vector host of Trypanosoma brucei?
Def. = Humans Inter./vector = Tsetse Fly
What is the target organ of Trypanosoma brucei?
CNS/CSF (Cerebal nerve system/cerebrospinal fluid)
What is the infectious stage of Trypanosoma brucei?
Metacyclic Trypomastigote