Parasitology Lab - Nematodes

8/3/2019 Parasitology Lab - Nematodes

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Laboratory Pictures

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*Ascaris lumbricoides (Giant intestinal

roundworm)


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corticated

decorticated


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*Trichuris trichiura (Whipworm)


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*Enterobius vermicularis (Pinworm)


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*Trichinella spiralis


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*Hookworm (Ancylostoma duodenale and Necator

americanus)


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*Capillaria philippinensis


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*Wuchereria bancrofti


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*Brugia malayi


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W. bancrofti B. malayi

Mean length (m) 290 222

Cephalic space:

breath

1:1 2:1

Sheath in giemsa Not stained Pink

Nuclei Regularly spacedseparately situated Irregularly spacedand overlapping

Tail Single row of nuclei

that does not reaches

the tip of the tail

Single row of nuclei

that reaches the tip

of the tail

Terminal nuclei None 2 nuclei bulge the

cuticle conspicuouslyspaced

Appearance in blood

film

Smoothly curved Kinky


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*Strongyloides stercoralis (Threadworm)


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Parasitology Lab - Nematodes

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