Pus

Definition
noun
A viscous exudate formed and discharged from an inflamed tissue as an end-result of suppuration
Supplement
Pus is an end-result of suppuration. It may vary in color: yellowish, greenish, or brownish hue. The color may depend on the causative agent of the infection.
1 Unlike other exudates, pus is viscous because of its components. It consists of leukocytes (especially polymorphonuclear leukocytes), dead pyogenic bacteria, and necrotic cellular debris or tissue elements.
Suppuration is the process of forming a pus in the inflamed tissue. However, suppuration may also refer to the pus itself. Pus forms when infective microorganisms (e.g. pyogenic bacteria) enter and invade the tissue and this leads to series of events that trigger the immune action of leukocytes. Chemical messengers are released into the bloodstream, which activate leukocytes to move into the site of infection. Pus is in fact the result of the immune response of the body through leukocytes attempting to remove the infective microorganisms and the affected cells of an injured tissue.
Word origin: Latin pūs, related to Greek puon (pus)
Synonym(s):

See also:

  • exudate
  • inflammation
  • Related term(s):

    • blue pus
    • blue pus bacillus
    • cheesy pus
    • curdy pus
    • green pus
    • ichorous pus
    • laudable pus
    • pus basin
    • pus cell
    • pus corpuscle
    • pus tube
    • sanious pus

    Reference(s):

    1White, L., Duncan, G., & Baumle, W. (2010). Foundations of Adult Health Nursing. NY: Cengage Learning.


    You will also like...

    Early Earth
    The Origins of Life

    This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..

    Genetics – Lesson Outline & Worksheets
    Genetics – Lesson Outline & Worksheets

      Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and ..

    Muscle
    Muscle

    Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..

    Darwin's Finches - Natural Selection
    Darwin and Natural Selection

    This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

    squirrel
    Animal Water Regulation

    Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

    Origins of Life on Earth
    Origins of Life on Earth

    Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

    Related Articles...

    No related articles found

    See all Related Topics