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Exam (elaborations)

PARASITOLOGY (PROTOZOANS) Questions And Answers

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PARASITOLOGY (PROTOZOANS) Questions And Answers trophozoites are frequently found in what type of stool? diarrheal and liquid stools excystation occurs in the _______ and organisms begin to multiply as ______ lower intestine; trophozoite the only pathogenic ameba E. histolytica infective for...

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  • October 20, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Parasitology
  • Parasitology
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PARASITOLOGY (PROTOZOANS)
Questions And Answers

trophozoites are frequently found in what type of stool? diarrheal and liquid stools




excystation occurs in the _______ and organisms begin to multiply as ______ lower

intestine; trophozoite




the only pathogenic ameba E. histolytica




infective form of E. histolytica mature quadrinucleate cyst




life cycle of ameba trophozoite stage → precystic stage → cystic stage → metacystic

stage




causes amebic colitis, amoebic dysentery, intestinal and extraintestinal amebiasis E.

histolytica




typical amoebic ulcer caused by E. histolytica has _______ shaped flask-shaped; mouth

and neck being narrow and base large and rounded

, PARASITOLOGY (PROTOZOANS)
Questions And Answers

hepatic involvement of E. histolytica extraintestinal amebiasis produces thick chocolate

brown pus/ anchovy pus (which is liquefied necrotic liver tissue)




special media that supports E. histolytica in culture TYI-S-33




pulmonary amebiasis results in expectation of chocolate brown sputum




CNS involvement of E. histolytica results to Secondary amebic meningoencephalitis




coffin shaped chromatodial bars and mature cyst with 4 nuclei E. histolytica




splinter like chromatodial bar cyst with 8 nuclei E. coli




ameba that moves in one direction and has only one pseudopod thrusted out in explosive manner

E. histolytica

, PARASITOLOGY (PROTOZOANS)
Questions And Answers
ameba that tries to move in several direction at the same time — sluggish motion E. coli




morphologically similar to E. histolytica E. dispar and E. moshkovskii




"small race" E. histolytica Entamoeba hartmanni




Major causative agent of PRIMARY AMEBIC MENINGOENCEPHALITIS (PAM)

Naegleria fowleri




MOT of Naegleria fowleri inhalation or aspiration of water




incapable of survival in clean, chlorinated water N. fowleri




causes Granulomatous Amebic Encephalitis (GAR) Acanthamoeba spp. (A. culbertsoni)




trophozoite is large and is characterized by spine-like pseudopodia Acanthamoeba spp

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