Dictionary > Elastic fiber

Elastic fiber

Definition
noun, plural: elastic fibers
A type of connective tissue fiber that is made up, primarily, of elastin, and found in skin, lungs, arteries, elastic cartilage, connective tissue proper, etc.
Supplement
Connective tissue is one of the major types of tissues in higher animals, including humans. One of the features of connective tissues is the presence of fibers. There are three major types of fibers associated with connective tissues: (1) collagen fibers, (2) elastic fibers, and reticular fibers.
An elastic fiber is the connective tissue fiber that is yellowish in colour, as opposed to the collagen fiber that is whitish. It is relatively thick, with a diameter of about 0.2 to 2 μm. In some ligaments, though, the elastic fiber could have larger diameter.
While collagen fiber is made up of collagen, the elastic fiber is made up of, primarily, elastin. Elastin is a glycoprotein comprised mainly of glycine and proline residues. Another elastin fiber component is the fibrous fibrillin. The fibrillin provide a scaffold for deposition of elastin.
The elastic fiber is distinguished from other connective tissue fibers for its great elasticity. It can stretch up to one and a half times their length then snap back to its original length when relaxed.
The elastic fibers are produced by fibroblasts and smooth muscle cells in the arteries. A connective tissue that consists mainly of elastic fibers is referred to as elastic tissue.
Variant(s):

  • elastic fibre (British)

Synonym(s):

  • yellow fiber
  • See also:


    You will also like...

    temperature - abiotic factor
    Abiotic and Biotic Factors

    This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..

    Birth of a Human Baby
    Birth of a Human Baby

    Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..

    Genetics and Evolution
    Genetics and Evolution

    Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

    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..

    Cell structure
    Cell Structure

    A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..

    Flowers and tiny fruits of the pomegranate plant
    Fruits, Flowers, and Seeds

    This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..