Card Set Information
Third germ layer, houses internal organs.
Three germ layers, endoderm, mesoderm, and ectoderm.
More than one evolutionary group clustered together.
Fluid filled cavity that houses organs.
No proper coelom found in the organism.
Solid connective tissue in flat worms that houses organs.
Planarians; Mostly non parasitic free swimmers or crawlers.
Flukes; All parasitic and have multiple stages of life.
Tapeworms; All parasitic, adult forms live in the intestines of host organisms.
The head of the tapeworm adult.
Smaller sub units of a tapeworm, contains reproductive organs and eggs.
Photoreceptors of planarians.
Sides of the planarian head, contains many chemoreceptors and mechanoreceptors.
"manus" of the flatworm, sucks food in and blows waste out.
blind-ended pouches off the GastroVascular Cavity.
Gastrovascular cavity (GVC)
Digestive organ of the flatworm that also transports nutrients and waste.
A simple excretory system composed of a flame cell and a tube cell.
A cell that creates a current inside a flatworm by waving.
Carries the excess water out of the flatworm.
Masticates the tissue of the host.
Holds the flatworm in place while feeding.
Mouth part; Trematoda masticate tissue with it as well.
Incomplete digestive tract
Trematoda and Planarians have this, as they lack an anus.
Uterus, Ovary, and Yolk (Vitelline) glands
Located in trematodas.
The connection between testes and the genital pore.
sperm is released and absorbed via this pore.
Sperm of another Trematoda are stored here for later fertilization.
Suckers and hooks
Found in tapeworms, on their scolex. Used to anchor themselves to their host.
a shell secreting gland located between the ovary and the yolk of a tapeworm.
Gravid (mature) proglottid
A proglottid full of fertilized eggs ready to be detached into the feces of the host.