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Trypanosome Lewis, Fasciola Hepatica - Notes | BIOL 0004, Study notes of Microbiology

Material Type: Notes; Class: Microbiology; Subject: Biological Sciences; University: Sierra College; Term: Spring 2010;

Typology: Study notes

Pre 2010

Uploaded on 07/31/2009

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Trypanosoma lewisi

  • D. Eukarya
  • K. Protista
  • Ph. Euglenozoa
  • Magnification 1000x
  • Seen w/ RBCs. Eel like cells. Ea with a dark oval shaped nucleus and a smaller kinetoplast. Single flagellum extends entire length of cell and is attached by an undulating membrane.

Fasciola hepatica

Sheep Liver Fluke

• D. Eukarya

• K. Animalia

• Ph. Platyhelminthes

• Cl. Trematoda

• Magnification

Schistosoma

Blood fluke

  • D. Eukarya
  • K. Animalia
  • Ph. Platyhelminthes
  • Cl. Trematoda
  • Magnification 40x
  • Blood fluke cercariae develop within water snails (Interm. Host) exit snails, swim until they find humans (Def. Host) and burrow thru skin. Adults live in blood vessels.

Taenia pisiformis

Dog Tapeworm

  • D. Eukarya
  • K. Animalia
  • Ph. Platyhelminthes
  • Cl. Cestoda
  • Magnification 40x
  • Tapeworm scolex which

attaches to the gut wall. 4

circular suckers and ring of

outward projecting hooks

are used for attachment.

Trichinella spiralis larvae

Trichinosis

• D. Eukarya

• K. Animalia

• Ph. Aschelminthes

• Magnification 400x

• Encysted larvae in

muscle tissue.

Necator americanus

• D. Eukarya

• K. Animalia

• Ph. Aschelminthes

• Magnification 20x

• Adult male

hookworm. Mouth

contains sharp

cutting teeth.

Dirofilaria

Canine Heart Worm

  • D. Eukarya
  • K. Animalia
  • Ph. Aschelminthes
  • Magnified 400x
  • Filarial larval stage shown among the RBCs. These are released by the female worms in the dogs heart. Picked up by a mosquito and transferred to a new host.