Parasite and Other Notes

• Giardia intestinalis CYST :

  = Cytoplasm; Retracted from cell wall creating a Clear Zone

  = Median Bodies / Parabasal Bodies = Believed that it is for Support and Energy

  Giardia intestinalis TROPHOZOITE :

  = Median Bodies

  = Axonemes: Suction

  = Sucking Disc: Mouth, for Nourishment 


  GENERAL:

  = MOT: ingestion of mature cyst source

  = Common in the Philippines

  = Contaminated water

  = Shed in Feces

  = Resistant to Chlorination process
• Trichomonas vaginalis TROPHOZOITE

  = Median Axostyle 


  GENERAL:

  = MOT/Life cycle: Sexual Contact

  = Optimal pH : 5-6 pH Acidic
• Retortamonas intestinalis CYST

  = 2 Fused Fibrils

  = Bird Beak appearance in the anterior part

  Retortamonas intestinalis TROPHOZOITE

  = Cytostome (1/2 of the body)

  = Well defined fibril border (Anterior)
• Enteromonas hominis CYST

  = Opposite nucleus

  Enteromonas hominis TROPHOZOITE

  = Jerky motility
• Chilomastix mesnili CYST

  = Well defined cytostome located on one side of the nucleus

  = Clear Knob

  Chilomastix mesnili TROPHOZOITE

  = Prominent cytostome extending 1/3 or 1/2 of the body length (Sheperd crooks)
• Dientamoeba fragillis TROPHOZOITE

  = Broad pseudopodia

  = Bacteria filled Cytoplasm (good bacteria)
• Pentatrichomonas hominis TROPHOZOITE

  = Before: Trichomonas hominis

  = Conical Cystosome cleft (Anterior)

  = Undulating membrane (Full Body)

  = Axostyle Extend Beyond the Body
• Trichomonas tenax TROPHOZOITE

  = Conical Cystosome cleft (Anterior)

  = Undulating Membrane (2/3 of Body Length)

  = Thick Axostyle

  = Small Anterior Cytostome

  = Unable to survive the digestive process
• Balantidium coli CYST

  = Double cyst wall

  = Cilia present in the Cyst wall

  Balantidium coli TROPHOZOITE

  = Layer of Cilia around organism

  = With Vacuoles

  = Cytoplasm may contain food/bacteria (mouth)

  = Cystosome & Cytopyge present (Anus)