Exam 3: Lab Flashcards
ID the organism and stage shown.
What features noted?
Clonorchis sinensis
Eggs
- Urn shape
- Collar at base of operculum
ID the organism and stage shown.
What features noted?
Clonorchis Sinensis
Adult stage
- Oral sucker is 1/4 from the anterior end
- Vitellaria are lateral and loosely coiled
- Caeca extends into posterior region
ID organism and stage shown.
What features noted?
Fasciola hepatica
Miracidium
- Tiny and elongate
- Has cilia
ID organism and stage shown.
What features noted?
Fasciola hepatica
Sporocyst
- Germ balls
- Variable size
**double check that this is Fasciola hepatica
ID organism and stage shown.
What features noted?
Fasciola hepatica
Redia
- Elongate and blunt at the posterior end
- Can have stumpy appendages (proscruli/ ambulatory buds)
ID organism and stage shown.
What features noted?
Fasciola hepatica
Redia
- Elongate and blunt at the posterior end
- Can have stumpy appendages (proscruli/ ambulatory buds)
ID organism and stage shown.
What features noted?
Fasciola hepatica
Cercaria
- Presence of a tail
- Has oral and ventral suckers
ID organism and stage shown.
What features noted?
Fasciola hepatica
Adult form
- Cephalic cone and “shoulders,”
- Highly branched intestinal ceca, clearly visible at the posterior end
ID organism and stage shown.
What features noted?
Clonorchis sinensis
Adult form
- Posterior, tandem, dendritic testes
- Vitelline glands, confined to the middle of the body
ID the organism and stage shown.
Give characteristic features.
Paragonimus westermani
Adult form
- Note the coffee-bean shape
- Long, wavy ceca
- Adjacent, branched testes
- Off-centered, lobate ovary
ID the organism and sex shown.
Give characteristic features.
Schistosoma mansoni
Female
ID the organism and sex shown.
Give characteristic features.
Schistosoma mansoni
Male
ID the organism and sex shown.
Give characteristic features.
Schistosoma mansoni
both
ID the organism and sex shown.
Give characteristic features.
Fasciolopsis buski
Egg
- [add things]
- Nearly same size and shape as F. hepatica
ID the class of organism shown and the stage it is in.
What key characteristics do you see?
Trematode
Egg
- Opercular shoulders
- Operculum
- Spine (top right)
ID organism and stage shown.
What features noted?
Fasciola Hepatica
Egg
- Oval shape
- Operculum
- Diffuse yolk granules
ID organism and stage shown.
What features noted?
Fasciola Hepatica
Egg
- Oval shape
- Operculum
- Diffuse yolk granules
ID organism and stage shown.
What features noted?
Paragonimus westermani
Egg
- Thick abopercular wall
- Relatively wide operculum, which sits in a rim.
ID organism and stage shown.
What features noted?
Fasciolopsis buskii
Adult
- No cephalic cone, no shoulders
- Ventral sucker is larger
- Caeca lack side branches
- Extensive vitelline glands occupy the lateral margins
ID the organism and stage shown.
What features noted?
Echinostoma revolutum
Adult
- Echino-oral spines
- Ventral sucker a lot bigger
- 2 tandem testes (one in front of the other)
ID the organism and stage shown.
What features noted?
Heterophyes heterophyes
Adult
- Small, tear-drop shape
- Posterior genital sinus (gonotyl)
ID the organism and stage shown.
What features noted?
Schistosoma hematobium
Egg
- Prominent terminal spine
ID the organism and stage shown.
What features noted?
Schistosoma mansoni
Egg
- Large, lateral spine
ID the organism and stage shown.
What features noted?
Schistosoma japonicum
Egg
- Nubby lateral spine
- More rounded shape
ID the organism and stage shown.
What features noted?
Schistosoma mansoni
Male w/ Female inside
- Male has tegument with papillae
ID the organism and stage shown.
What features noted?
Schistosoma mansoni
Cercaria
- Forked tail
ID the organism and stage shown.
What features noted?
Schistosoma mansoni
Miracidium
- not sure TBH, there’s cilia though
**doubt it will be on the exam (just guessing though)**
ID the organism and stage shown.
What features noted?
Schistosoma mansoni
Sporocyst
- idk, it’s elongate
ID the organism and stage shown.
What features noted?
Diphyllobothrium latum
Egg
- Oval shape
- Abopercular knob
ID the organism and stage shown.
What features noted?
Diphyllobothrium latum
Scolex
- Bothrium shown at the arrow
ID the organism and stage shown.
What features noted?
Diphyllobothrium latum
Mature proglottid
- Bilobed ovary
- Rosette-shaped uterus with brown eggs
ID the organism and stage shown.
What features noted?
Taenia pisiformis
Scolex
- Armed rostellum
- 4 acetabelum (suckers)
*similar to T. solium
ID the organism and stage shown.
What features noted?
Taenia pisiformis
Mature proglottid
- Bi-lobed ovary
- Follicular testes
- Lateral genital pore
ID the organism and stage shown.
What features noted?
Taenia Saginata
Scolex
- No hooks
ID the organism and stage shown.
What features noted?
Taenia Saginata
Proglottid
- More than 14 side branches in gravid uterus
ID the organism and stage shown.
What features noted?
Taenia solium
Scolex
- Armed rostellum
ID the organism and stage shown.
What features noted?
Taenia solium
Proglottid
- Less than 14 side branches in the gravid uterus
ID the organism and stage shown.
What features noted?
Taenia solium
Cysticercus
- Invaginated scolex
ID the organism shown
Taenia saginata
ID the organism shown.
What structures give it away?
Taenia solium
Armed rostellum
ID the organism and stage shown.
What features noted?
Hymenolepis nana
Cysticercoid
- ya just know
ID the organism and stage shown.
What features noted?
Hyemnolepis nana
Mature proglottids
- 3 testes
- Wider than long
ID the organism and stage shown.
What features noted?
Hymenolepis nana
Egg
- polar thickenings
- thick emryophore
ID the organism and stage shown.
What features noted?
Hymenolepis diminuta
Adult [scolex]
- rostellum with no hooks
ID the organism and stage shown.
What features noted?
Hymenolepis diminuta
Strobila [Mature proglottid]
- 3 testes
- Wider than long
ID the organism and stage shown.
What features noted?
Hymenolepis diminuta
Egg
- Oncosphere with hooks
- No polar filaments
ID the organism and stage shown.
What features noted?
Hymenolepis diminuta
Eggs
- Oncosphere with hooks
- No polar filaments
ID the organism and stage shown.
What features noted?
Dipylidium caninum
Adult [scolex]
- Pointed rostellum w/ 4 suckers
ID the organism and stage shown.
What features noted?
Dipylidium caninum
Adult proglottid
- 2 sets of reproductive structures
- 2 genital pores
- More than 12 testes
