Nematode Review

The adult female nematode is usually smaller than the male.

• true

• false

The eggs of "Old World" and "New World" hookworms are easily differentiated.

• true

• false

Pinworm infection is often accompanied by intense prurities.

• true

• false

A child complaining of rectal itching and insomnia is most likely suffering from

• pinworm

• whipworm

• hookworm

• threadworm

Which larvae infect the host via penetration through the skin?

• Ancylostoma duodenale filiariform larvae

• Strongyloides stercoralis rhabditiform larvae

• Toxocara canis larvae

• Necator americanus rhabditiform larvae

Fertilized, unfertilized, and mammilated coat eggs of ______ may be found in the stools of infected persons.

• Ascaris lumbricoides

• Strongyloides stercoralis

• Enterobius vermicularis

• Necator amercanus

Which of the following helminths is known as the hookworm?

• Necator americanus

• Trichuris trichiura

• Strongyloides stercoralis

• Ascaris lumbricoides

Barrel-shaped, bile stained ova, with clear, prominent polar plugs at each end are characteristic of

• Trichuris trichiura

• Strongyloides stercoralis

• Ancylostoma duodenale

• Necator americanus

The hookworm egg hatches to produce the

• rhabditiform larvae

• filariform larvae

• cyst

• trophozoite

Identify the nematode ova

• Enterobius vermiculars

• Trichuris trichiura

• Ascaris lumbricoides

• hookworm