Exam 1 Practical Flashcards
Which filarial Nematode is this?
Wuchereria bancrofti microfilariae
(Sheathed, no nuclei at the tip)
Which Nematode is this?
8-13mm
Enterobius vermicularis adult
Which Trematode is this?
150µm
Schistosoma mansoni egg
Which Trematode is this?
30µm
Clonorchis sinensis/Opisthorchis spp egg
Which insect is this?
Phthiris pubis (pubic louse)
Which insect is this?
Flea
Which Cestode is this?
Echinococcus granulosus (mature adult from hydatid sand)
Which Nematode is this?
55µm
Enterobius vermcularis egg
Which Nematode is this?
Strongyloides stercoralis
Rhabditiform larvae
Which Cestode is this?
70-85µm
Hymenolepis diminuta
Which Nematode is this?
45-75µm
Unfertilized Ascaris lumbricoides egg
Which Cestode is this?
Dipylidium caninum
Which Cestode is this?
~40µm
Taenia spp (unable to differentiate b/w T. saginata and T. solium)
Which filarial Nematode is this?
Brugia malayi microfilariae
(Sheathed, space b/w last two nuclei at tip of tail and cephalic space)
Which Trematode is this?
150µm
Schistosoma hematobium egg
Which Trematode is this?
90µm
Paragonimus westermani egg
Which insect is this?
Pediculus humanus (body louse)
Which Cestode is this?
65µm
Diphyllobothrium latum
Which Cestode is this?
30-45µm
Hymenolepis nana
Which Cestode is this?
Echinococcus granulosus (hydatid sand)
Which filarial Nematode is this?
Onchocerca vulvulus microfilariae
(No sheath, no nuclei at tip of tail)
Which Nematode is this?
45-75µm
Fertilized Ascaris lumbricoides egg (w/ mammilated coat)
Which Trematode is this?
130µm
Fasciolopsis buski/Fasciola hepatica (indistinguishable)
Which filarial Nematode is this?
Loa loa microfilariae
(Sheathed, nuclei are continuous to tip of tail)
Which Nematode is this? What type of prep is this?
Trichinella spp; cross section of muscle biopsy
Which Nematode is this?
250-300µm
Hookworm
Rhabditiform larvae
Which Nematode is this?
~50µm
Trichuris trichiura egg
Which Nematode is this?
50-60µm
Hookworm egg
Which Nematode is this? What type of prep was used?
Trichinella spp; squash prep
What type of arachnid is this?
Tick
Which Cestode do these proglottids belong to?
Diphyllobothrium latum
Which Nematode is this?
30-50mm
Trichuris trichiura adult
What type of arachnid is this?
Mite
Which Cestode is this?
65µm
Diphyllobothrium latum
Which Trematode is this?
85µm
Schistosoma japonicum egg
Which insect is this?
Pediculus capitus (head louse nit)
Which Nematode is this?
45-75µm
Ascaris lumbricoides egg
(the egg on the top has been decorticated)
