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A parasite with general term meaning, worm.
Helminths
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What is the shape of the tapeworm?
A cestode is segmented plane.
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What is the shape of the fluke?
- A trematode is unsegmented plane.
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What is the shape of a nematode?
A nematode or a roundworm is cylindrical.
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The only helminth that is present in the body cavity.
Roundworm or nematode.
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The body covering of both cestode and trematode.
Tegument.
*Integument is a synonym of tegument.*
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The body covering of the nematode.
cuticle
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The only helminth that does not have a digestive tract.
The tapeworm or the cestodes.
Tapeworms do not have a digestive tract. Instead, they absorb their nutrients from the gut contents of the host directly through their outside surface, tegument.
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Trematodes have _______ mode of digestive system.
Incomplete digestive system.
The digestive system originates at the oral sucker and contains a pharynx, an esophagus, and a bifurcated intestine.
There is no anus; thus, waste products must be regurgitated (spit off) following digestion.
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Digestive tube of _____ end in the cecum.
flukes or trematodes
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Digestive tube of _____ end in the anus.
roundworm or nematodes
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Sex classification of tapeworms?
Hermaphroditic - having both male and female reproductive organs.
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Sex classification of fluke?
Hermaphroditic,
except schistosomes which are dioecious (having the male and female reproductive organs in separate individuals.)
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Most nematodes are characterized by being ______, as their sex.
dioecious
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Attachment organ of tapeworms are ________.
- Cestodes have sucker or bothridia, and rostellum with hooks.
w
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Attachment organ of a fluke?
Flukes have oral sucker and ventral sucker or acetabulum.
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Attachment organ of a roundworms.
Nematodes have lips, teeth, filariform extremities, and dentary plates.
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