Dictionary > Cestoda

Cestoda

Definition
noun
(taxonomy) A class of the phylum Platyhelminthes that is comprised of tapeworms
Supplement
The phylum Platyhelminthes (flatworms) is comprised of parasitic worms characterized mainly by their flattened, bilaterally symmetrical body. This phylum includes the four classes: (1) Turbellaria, (2) Trematoda, (3) Monogenea, and (4) Cestoda.
Species of the class Cestoda are also commonly called as tapeworms or cestodes. All known species of this class are parasites. Their life cycle typically involves parasitizing a definitive host (often, the gut) during adulthood and infecting an intermediate host (e.g. muscle tissues) during the juvenile phase.
The head of the tapeworm is referred to as scolex. The scolex has sucking grooves called bothria. The worm uses the bothria as suction cups to attach to the gut of the host. The body of the tapeworm is a strobila that is comprised of proglottids. The strobila is thin and resembling a strip of tape, thus, the name (tapeworm). The proglottids located distally contain the eggs, which are the infective phase of the worm.
Examples of tapeworm species are Taenia solium (pork tapeworm), Taenia saginata (beef tapeworm), Diphyllobothrium spp. (fish tapeworm), etc.
Scientific classification:

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

See also:

  • cestode
  • flatworm
  • Platyhelminthes
  • helminthiasis


  • You will also like...

    New Zealand - Biodiversity fauna
    New Zealand’s Biodiversity

    Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

    Oligodendrocyte and Schwann cell
    The Central Nervous System

    Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

    Gene Pool and Speciation
    The Gene Pool and Population Genetics

    According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

    Cambial cells
    Plant Tissues

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

    Population Regulation in an Ecosystem
    Population Regulation in an Ecosystem

    With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

    Population Growth and Survivorship
    Population Growth and Survivorship

    This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..

    Related Articles...

    No related articles found

    See all Related Topics