Changes

Category:Acute Inflammation (view source)

724 bytes removed , 11:14, 4 August 2010

no edit summary

Line 14: Line 14:

===[[Haemorrhagic Inflammation]]===

−

===Purulent===

+

===[[Purulent Inflammation]]===

−

* In purulent inflammation, pus is the predominant feature.

−

** Pus is an admixture of dead and dying neutrophils with necrotic cells and a pyogenic agent.

−

*** Proteolytic enzymes released by the dying neutrophils lyse tissue cells to produce a fluid.

−

* Colour varies depending upon the agent.

−

** May be white, yellow, green or brown.

−

* An abscess is a circumscribed sphere of pus surrounded by a pyogenic membrane.

−

** The pyogenic membrane is composed of capillaries bringing neutrophils into the sphere.

−

** This rapidly becomes enveloped by a fibrous tissue capsule.

−

*** A local connective tissue response attempting to wall off the purulent irritant from nearby normal tissue.

−

~~[[Category:Acute Inflammation]][[Category:To Do - Blood]]~~

[[Category:Inflammation]]

53,803

edits