|
|
(7 intermediate revisions by the same user not shown) |
Line 1: |
Line 1: |
| + | {{frontpage |
| + | |pagetitle =Acute Inflammation |
| + | |pagebody = |
| | | |
− | ==Fluids== | + | |contenttitle = Content |
− | ===[[Serous Inflammation]]=== | + | |contentbody =<big><b> |
| + | <categorytree mode=pages>Acute Inflammation</categorytree> |
| + | </b></big> |
| | | |
− | | + | |logo = path-logo.png |
− | ===Catarrhal===
| + | }} |
− | | |
− | * Catarrhal inflammation is a mild form of inflammation.
| |
− | * Occurs on mucous membranes where there are many mucus cells.
| |
− | * The consistency of catarrhal exudate varies from water to gelatinous.
| |
− | * Colour varies from cloudy to pinkish.
| |
− | * This form of exudation is essentially a shedding of epithelium containing many mucus cells, neutrophils, some RBCs, and flecks of fibrin.
| |
− | | |
− | * Common in mild forms of rhinitis, tracheitis, bronchitis, gastritis and enteritis.
| |
− | [[Category:Acute Inflammation]][[Category:To Do - Blood]]
| |
− | ===Fibrinous===
| |
− | | |
− | * Fibrinous exudation occurs in more severe endothelial injury.
| |
− | ** Injury results in the escape of fibrinogen, which is converted to fibrin.
| |
− | * The fibrin formed appears as a yellowish coagulation on the surface of or within a tissue.
| |
− | ** Common in the lungs and on serous surfaces.
| |
− | * In hollow organs the fluid may coagulate to form casts of the lumen.
| |
− | | |
− | * Fibrin will peel off from the underlying tissue without causing damage to it.
| |
− | [[Category:Acute Inflammation]][[Category:To Do - Blood]]
| |
− | ===Diptheritic===
| |
− | | |
− | * Diphtheritic exudate a more severe form of fibrinous exudate in which there is considerable necrosis of the underlying tissues.
| |
− | * Diptheritic exudate is firmly adherent to the underlying tissue.
| |
− | ** Attempts at removal cause tearing of this tissue>
| |
− | * Commonly seen with internal surface fungal infections.
| |
− | ** E.g. in the nose of the dog and the guttural pouch of the horse.
| |
− | ** Fungal toxins penetrate the underlying tissue causing coagulation necrosis.
| |
− | | |
− | ===Haemorrhagic===
| |
− | | |
− | * This is a severe acute to peracute inflammation in which haemorrhage is the main component.
| |
− | | |
− | * Seen in the lymph nodes, lungs and intestine in severe inflammation.
| |
− | [[Category:Acute Inflammation]][[Category:To Do - Blood]]
| |
− | ===Purulent===
| |
− | | |
− | * 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]] | | [[Category:Inflammation]] |