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26 Cards in this Set
- Front
- Back
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Flap of tissue that covers mouth |
Protomium |
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Where does sperm enter worm |
Seminal receptacle opening |
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How does the earthworm breathe |
Diffusion of gasses in body wall Skin |
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Clitillum |
Hold 2 worms together while mating |
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Cocoon |
Capsule containing fertilized egg |
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Casting |
Undigested dirt passes through the anus |
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Dorsal blood vessel transports blood to |
Anterior end of the worm |
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Typhlosole |
Folds inwards to give intestine more room to digest |
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Intestine |
Main organ of chemical digestion |
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Nephridium |
Remove nitrogeneous waste |
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Setae |
Grabs burrow walls and pulls it along |
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Ventral blood vessel |
Transports blood to posterior |
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Where is the nerve cord |
Under the ventral blood vessel |
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Longitude muscles |
Cause the earthworm to shorten and become thicker |
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The worm becomes thinner when |
Circular muscles contract |
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Peristaltic waves |
Moves blood within the dorsal blood vessel |
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Pharynx |
Creates a vacuum to suck soil |
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Seminal vesicles |
Stores semen produced in the testes |
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How many aortic arches does a worm have? |
5 |
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Where and how is the worm's food neutralized? |
Calciferous glands in the esophagus |
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Where are the glands that secrete enzymes for digestion? |
The intestines |
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What is the function of the gizzard? |
Grinds food |
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What is the crop? |
Temporary storage place for food |
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What do the ovaries produce? |
Eggs |
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What bulge with sperm after a worm has mated? |
The seminal receptacles |
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What rests on the pharynx? |
The brain |
