Pathology if inflammation.causes, manifestation, types Flashcards
definition of inflammation
complec local mesenchymal and vascular reaction of living tissue on different types of damage
systemic manifesarions of local inflammation
nausea, ^temp, headache, fatigue, enlarged LN, leukocytosis
long lasting chriniz–>AA amyloidosis
SIRS-systemic inflammatory response syndrome
pathogenesis of sepsis
leads to MODS
physiological role of inflammation
- eliminate cause of inflammation and minimize tissue dmaage
- stop spreading of the cause of inflammation (surrond it)
- activate processes of regeneration and repair(healing
pathological role of inflammation
excessive or long lastin reaction leading to tissue damage
role in pathogenesis of many diseases
factors determining inflammatory responese
- features of pathogen
- response of host organism
feature of pathogenbi
- type and mechanism of tissue
- virulence
- infectious dose
- portal of entrance
- products of pathigen
response of host organism
- systemic disaese (dm, Chronic renal insufficency-CHRI, cirrhosis, alcholism, BM failure)
- tumors
- function status of IS-psecific and nonspeficific
- type and localization of damaged tissye
- local host factors
components of inflamamtion
1 cellualr
2. humoral
cellular compinent of inflammation
- neutrophils
-eosinophils - monocytes/macrophagesa dn tissue macrophages (histiocytes)
- lymphocytes and plasma cells
- mast cells
-thromocytes
-endothelial cells
-fibroblast/fibrocytes
humoral component of inflammaiton
- cell derived:
- histamine, serotonin: vasoactive
- prostagladnins, leujotrines: arachionic acid
- free oxy radical, nitric oxide, cytokines, neuropeptides
- plasma derived
- liver
1.components of complement
2. factor X11 (hageman factor) : vessle dia
3. processes of hemostasos, including blood coagualtion and fibrinolysis
- liver
macroscopical features of inflammaiton
typical for acute inflammaiton
1: Calor=Heat (^temp)
- VASODILATION AND HYPEREMIA=HIGHER BLOOD PERFUSION
- hitg metabolic rate=heat
2: Rubor=redness
- dilated vv full of blood
3: tumor=swelling
- leaking water form vv–>acc in interstitium–>inflammatory edema
- exsudate
4: dolor=pain
- inflammatory mediator stimulate nerve fibers–>pain
5: functio leasa=loss of fucntion
- tissue damaged–>not normal funciton
microscopical feature of inflammation types
alteration, exsudation, proliferation
1/2 are increased/advanced
signs (Features) of inflammaiton-histologically
- VASCUALR CHNAGES (sec to minutes)
- infiltrattion of tissue with the inflammatory cells=inflammatory infiltarte/7celluzation (hours-days)
- biochemical, metabolic and morphological changes in involved tissye, even in severe distant organs-liver, spleen, ln
- act of IS
What is altera5ion and what is ti caused by
to alter=damage
- represented by development of dystrophies and necrosis
caused by presence of microorganism, their toxins and immunopathological mechnaism: unfectionys inflammations