Dictionary > Cestode

Cestode

Definition
noun, plural: cestodes
A common name for the species belonging to the class Cestoda
Supplement
Phylum Platyhelminthes, commonly called flatworms, is comprised of four groups: (1) turbellarians, (2) trematodes, (3) monogeneans, and (4) cestodes. All of them are characterized by their flattened, bilaterally symmetrical body.
The cestodes belong to a class of parasitic flatworms, which in turn belongs to the phylum Platyhelminthes. One of the major distinctive features of cestodes is being parasitic. All cestode species known are parasites. Most of the adult cestodes infest the digestive tracts of vertebrate hosts. The young cestodes are often found in the bodies of compatible or suitable intermediate hosts. For instance, the tapeworm, Taenia saginata (beef tapeworm), is a parasite of humans and other primates as definitive host. It inhabits the gut of its host and release proglottids that leave the body of the host through the anus. Contaminated vegetation eaten by a cow, for instance, may serve as its intermediate host. The young tapeworm migrates and forms a cyst in the body tissues of the intermediate host, e.g. muscles. Ingestion of undercooked or raw infected muscle tissue by the definitive host leads to the release of the tapeworm from the cyst, thus completing the life cycle of the tapeworm.
Scientific classification:

  • Kingdom: Animalia
  • Phylum: Platyhelminthes
  • Class: Cestoda

Other common name(s):

  • tapeworm
  • See also:

    • flatworm
    • Platyhelminthes
    • Helminthiasis


    You will also like...

    Adaptation Tutorial
    Adaptation Tutorial

    Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..

    Photosynthesis and respiration
    Plant Metabolism

    Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..

    Homeostasis by water regulation
    Homeostasis of Organism Water Regulation

    Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

    Biological Energy
    ATP & ADP – Biological Energy

    ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

    Freshwater aquatic plankton
    Freshwater Communities & Plankton

    Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

    green plant cells
    Plant Cells vs. Animal Cells

    Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..

    Related Articles...

    No related articles found

    See all Related Topics