Chapter 2: Inflammation Flashcards
(37 cards)
involves reorganization of the WBC and insertion of the psedopods into the gaps of endothlial cells.
diapedesis
increased hydrostatic pressure leads to ___
edema
accumulation of fluid within the extravascular compartment and interstitial tissues
edema
increased permeability of vessel wall and increased hydrostatic pressure –> ___ edema fluid with a low protein content (specific gravity <1.0)
transudate
edema fluid with a high protein concentration (specific gravity >1.0), which frequntly contains inflammatory cells
exudate
3 types of exudate
serous exudate
fibrinous exudate
purulent exudate
has a yellow, straw-like color and is characterized by the absence of a prominent cellular response
serous exudate
contains large amounts of fibrin as a result of activation of the coagulation system
fibrinous exudate
contains cellular components. Associated with pathologic conditions such as pyogenic bacterial infections in which the predominant cell type is the poly morphonuclear neutrophil (PMN)
purulent exudate
mediators of inflammation
divided into 2 groups:
-___ ___: inactive to active
-___ ___: stored in leukocytes and platelets
plasma derived
cell derived
include, among others, biogenic amines, peptides, and arachidonic acid derivatives
biochemically diverse
act on many cells and tissues
multifunctional
mediators of inflammation are: (2)
histamine and bradykinin
histamine
- ___ amine
- released from ___ and ___ cells
- ___ inflammatory response
- short action (“immediate transient reaction”) because it is inactivated by ___
- Benadryl (___) is an ___ of the histamine ___ receptor. ___ the histamine actively.
biogenic platelets, mast increase histaminase Diphenhydramine, antagonist, H1, blocks
bradykinin
- has a similar action as ___
- induces ___
histamine
pain
___ ___is derived from phospholipids through the action of ___
arachidonic acid
phospholipases
Arachidonic acid is further metabolized through two pathways:
Lipoxygenase pathway
Cyclooxygenase pathway
ischaracterizedby increased blood flow, increased permeability of vessels to cells, proteins, fluids and inflammatory cells (neutrophils or PMN) out in the tissue. Usually happens as a natural homeostasis process
acute inflammation
:ischaracterizedbythe presence of macrophages, lymphocytes and plasma cells. There is a associated tissue destruction, scarring and granulation tissue formation. It persists over a longer period of time.
chronic inflammation
Earlystageofmost inflammation & produce exudate
serous inflammation
exudate of coagulated fibrin
fibrinous inflammation
acute form of exudative inflammation in which the enzymes produced by white blood cells cause liquefaction of the affected tissues, resulting in the formation of pus
purulent inflammation
necrosisonornearthe surface leads to loss of tissue and creation of a local defect (ulcer).
ulcerative inflammation
acute inflammatory response to a powerful necrotizing toxin (e.g. diphtheria toxin—bacterial toxin), characterized by formation on a mucosal surface of a false membrane composed of precipitated fibrin, necrotic epithelium, and inflammatory leukocytes
Pseudomembranous inflammation