Dictionary > Trematode

Trematode

Definition
noun, plural: trematodes
A common name for the species belonging to the Class Trematoda, which is characterized by having external suckers
Supplement
Phylum Platyhelminthes, commonly called flatworms, is comprised of four groups: (1) turbellarians, (2) trematodes, (3) monogeneans, and (4) cestodes. They are characterized by their flattened, bilaterally symmetrical body.
The trematodes are distinguished by their holdfasts resembling suckers that aid them to anchor within the host. Most of them are parasites of mollusks and vertebrates. They include two subclasses: Digenea and Aspidogastrea. The subclass Digenea includes most of the trematodes that live as obligate parasites of both mollusks and vertebrates. The subclass Aspidogastrea includes trematode species that live as obligate parasites of mollusks but may also infect vertebrates, such as turtles and fish.
The trematodes are also called flukes. Based on the system of the vertebrate host that they infect, they are classified into tissue flukes or blood flukes. The tissue flukes, e.g. Paragonimus westermani, Fasciola hepatica, and Clonorchis sinensis, are those that are found in lungs, bile ducts, and other tissues of their hosts. The blood flukes, e.g. Schistosoma, are those that occur in the blood of their vertebrate host. Humans may also serve as a host to certain trematodes, such as Schistosoma, Clonorchis, Opisthorchis, Fasciola, and Paragonimus species.
Scientific classification:

  • Kingdom: Animalia
  • Phylum: Platyhelminthes
  • Class: Trematoda Rudolphi, 1808

Other common name(s):

  • fluke
  • See also:


    You will also like...

    Plant meristem
    Plant Meristems and Growth

    In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

    Cambial cells
    Plant Tissues

    Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..

    Human perception in action
    Human Perception – Neurology

    This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..

    Evolution of Life - Ancient Earth
    Evolution of Life – Ancient Earth

    Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

    Fossil trilobite imprint in the sediment
    Insects

    There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

    Biological Viruses
    Biological Viruses

    Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...

    Related Articles...

    No related articles found

    See all Related Topics