Dictionary > Necrosis

Necrosis

Definition
noun, plural: necroses
Premature death of cells in a living tissue or organ caused by the progressive degradative action of enzymes
necrotic, adjective
Of, characterized by, relating to, produced by, or affected with necrosis
Supplement
Necrosis is a term pertaining to the bodily injury characterized by the localized death of cells in a living tissue or organ. Necrosis is different from apoptosis in a way that the former is a premature death of cells or tissues. In apoptosis, the death of a cell occurs naturally and according to the apoptotic signal transduction pathway. In necrosis, the death of a cell is caused not by such pathway but by a mechanism involving the activation of certain receptors resulting in the loss of cell membrane integrity.1 Factors that lead to necrosis are infection, toxins, and trauma.
Word origin: Ancient Greek nékrōsis (death)
See also:

Related term(s):

  • Receptors tumour necrosis factor
  • Simple necrosis
  • Infectious pancreatic necrosis virus
  • Tumour necrosis factor
  • Caseous necrosis
  • Coagulation necrosis
  • Fat necrosis tumour
  • Fat necrosis
  • Avascular necrosis
  • Central necrosis
  • Colliquative necrosis
  • Contraction band necrosis
  • Tumor necrosis factor
  • Femur head necrosis
  • Bridging hepatic necrosis
  • Liquefactive necrosis
  • Reference(s):

    1Proskuryakov SY, Konoplyannikov AG, Gabai VL; Konoplyannikov; Gabai (2003). “Necrosis: a specific form of programmed cell death?”. Exp. Cell Res. 283(1): 1–16.


    You will also like...

    human brain structure
    The Conscious & Unconscious Nervous System

    This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

    kinesin motor proteins transporting molecules across microtubules
    Movement of Molecules Across Cell Membranes

    Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

    Sugar Homeostasis
    Sugar Homeostasis

    The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..

    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..

    Regulation of Biological Systems
    Regulation of Biological Systems

    Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..

    Cells in different stages of meiosis
    Meiosis – The Genetics of Reproduction

    Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

    Related Articles...

    No related articles found

    See all Related Topics