Dictionary > Peritoneum

Peritoneum

Definition
noun, plural: peritonea
(anatomy) The serous membrane forming the lining of the abdominal cavity or coelom
peritoneal, adjective
Of, pertaining to, or relating to the peritoneum
Supplement
The peritoneum is the The serous membrane forming the lining of the abdominal cavity or coelom. In mammals, it lines the abdomen and is folded over the viscera. In other animals, such as some amniotes and invertebrates, the peritoneum lines the coelom cavity. The peritoneum covers most of the abdominal or coelomic organs. Thus, it functions by supporting these organs as well as by serving as a conduit for their blood vessels, lymph vessels, and nerves.
The peritoneum is made up of a layer of mesothelium that is supported by a thin layer of connective tissue. It may appear as one continuous sheet but there are two types of layers that exist: the parietal peritoneum (outer layer) and the visceral peritoneum (inner layer). In between these two layers is a space filled with serous fluid. This space is referred to as the peritoneal cavity.
Word origin: Ancient Greek perí (“around”) + tónos (“stretch”) + –aios (“suffix to form an adjective”)
See also:

Related term(s):

  • Lesser peritoneal cavity
  • Lesser peritoneal sac
  • Peritoneal dialysis
  • Peritoneal cavity
  • Peritoneal fossae
  • Peritoneal lavage
  • Peritoneal transfusion
  • Intraperitoneal
  • peritonitis


    You will also like...

    Energy pyramid
    Freshwater Community Energy Relationships – Producers & Consumers

    This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

    Angle Oak Tree
    Seed Plants

    Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..

    Biological Viruses
    Biological Viruses

    Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...

    Sigmund Freud and Carl Gustav Jung
    Sigmund Freud and Carl Gustav Jung

    In this tutorial, the works of Carl Gustav Jung and Sigmund Freud are described. Both of them actively pursued the way h..

    An artistic depiction of a human embryo
    Growth and Development of a Human Baby

    Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

    Lights' Effect on Growth
    Lights’ Effect on Growth

    This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..