Earthworm Flashcards
Septa (Septum)
The lines that divide the worm and help it move.
Clitelluem
The large bump, typically on top the dorsal side that divides the anterior and the posterior.
Dorsal
The top side of the animal. (Earthworm it is the darker side, the more round side, and the side that has the Clitellum on top.)
Vental
The bottom side of the animal. (The earthworm, the flat and light colored side.)
Anterior
The “head” of the animal. In the Earthworm it was the side we cut open an examined (Ex. testes, mouth, the ganglia….)
Posterior
The end of the animal where the anus is typically located.
Mouth
The beginning of the animal where they typically eat food.
Anus
The end of the animal where the feces and poop come out.
Setae
The part on the outside that helps the earthworm move, these are located up an down the whole body.
Sperm groove
Are the place where the sperm is stored to be able to be released when it can be reproduced.
Gential pores
The place where the egg or sperm can meet to reproduce.
Seminal receptacles (vestical)
The “pocket” that stores unused sperm.
Dorsal blood vessel
The vessel located at the top of the animal.
Aortic arches
The hearts of the earthworm.
Pharynx
Part of the digestive tract right after the mouth.
Esophagus
The throat of the earthworm right between the pharynx and crop.
Crop
Right after the Esophagus that stores the food until its ready for the gizzard.
Gizzard
After the crop, used to “grind” up food that can be digested easier. (The really hard part in the worm)
Intesine
Where the food gets digested.
Ganglia
The brain.
Seminal vesicle
Small hollow organs that carry the semen of an earthworm.
Ovaries
The egg of the earthworm. (The earthworm is hermaphroditic)
Testes
The sperm producers of the earthworm.
