Card Set Information
Phylum Annelida featuring Oligochaeta, Polychaeta, and Hirudinea
Thin membranous folds, divides coelom.
Repetition of body segments.
A repeated segment found in metamerism
Excretory system of the Annelids, removes waste from the blood as well as the coelomic fluid.
Appendages used in respiration and locomotion.
Acicula and setae
Circular muscle and Longitudinal muscle
Allow locomotion through peristaltic waves.
Create elliptical motion for parapodia, causing propulsion.
Earthworm; Freshwater and terrestrial, only 4 pairs of setae per segment.
Clamworm; Marine only worms, a large amount of setae per segment, makes up almost 2/3rds of the phylum.
Leeches; Freshwater and marine, parasitic.
Small blood vessels that do gas exchange, found on the parapodia.
Membranous section of the earthworm, forms cocoon for eggs.
Mucus like secretion of the clitelum, houses eggs.
Stores sperm cells created by the earthworm, used to deliver to another worm.
Used to store sperm from other worms for a short time.
Eggs are secreted here into the egg capsule.
Where the worm churns the dirt it eats, mechanical digestion.
Adds surface area and rigidity to the intestine, runs the length of the intestine.
Blood vessel that pumps blood via peristaltic motion forward toward anterior of the worm.
Acts as the heart of the earthworm, pumps blood through the ventral vessel.
Blood is distributed throughout the body by this vessel.
Anterior and posterior suckers
Found on leeches only, they attach themselves to hosts using these.