Dictionary > Belt desmosome

Belt desmosome

Definition
noun, plural: belt desmosomes
A type of desmosome characterized by a belt-like rivet between neighboring cells
Supplement
Desmosomes are anchoring junctions between neighboring cells. A similar anchoring junction is the hemidesmosome. Both desmosomes and hemidesmosomes use intermediate filaments as their cytoskeletal anchor. However, the transmembrane linker of desmosomes is cadherin whereas that of hemidesmosomes is integrins. Furthermore, desmosomes link cell to another cell whereas hemidesmosomes link cell to the extracellular matrix. Desmosomes are typically found in simple and stratified squamous epithelium. They aid in resisting shearing forces. They are also found between myocytes where they bind these cells to one another. There are basically two types of desmosomes identified: (1) spot desmosomes and (2) belt desmosomes. Their difference lies on their appearance. The belt desmosomes are belt-like surrounding the cell completely, hence, the name. In contrast, spot desmosomes appear spot-like or circular in outline.
Another name for belt desmosome is zonula adherens. Together with macula adherens and zonula occludens, zonula adherens form junctional complex.1
Synonym:

  • zonula adherens
  • adherens junction
  • adhesive belt

Compare:

  • spot desmosome
  • See also:

    Reference(s):

    1 Quick review: the 5 main intercellular junctions. Retrieved from ://www.pathologystudent.com/?p=9739.


    You will also like...

    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..

    Bryophytes
    Bryophytes

    Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

    Adaptive Radiation
    Adaptive Radiation

    The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

    Pink Lotus plant on a pond
    Freshwater Lentic Communities & Animals

    This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..

    Still Water Animals
    Still Water Animals

    Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..

    Crossing Over and Genetic Diversity
    Inheritance and Probability

    Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..

    Related Articles...

    No related articles found

    See all Related Topics