Third quiz Flashcards
redness
rubor
calor
heat
tumor
swelling
dolor
pain
loss of funtion
functio Laesa
______ are present before capillaries that regulate blood flow
sphincters
Where does the exchange of nutrients take place?
capillaries (also the only site of gas exchange)
outer most part of a blood vessel is called the
basement membrane
inner layer to the basement membrane and lines the lumen
endothelia
_____ gaps in the capillaries are the where nutrient are exchanged
endothelial
Pinocytic vesicles
where cell digest extracellular fluid and its contents
two forces that pull fluid out of capillaries
blood osmotic pressuretissue hydrostatic pressure
Components to inflammation (2)
vascular componentcellular component
vascular component to inflammation involves these two things
hyperemia-increased blood flowincreased permeability of blood vessels
What happens in the cellular component of inflammation
blood cells flow into site of inflammation
_____ tissues cannot be inflamed
avascular
Chondroitis in inflammation of what?note- same concept applies to IVDS and lens
tissues surrounding!!! the cartilage*not the actual cartilage b/c it is avascular
protein rich fluid that leaks blood cells into the tissues at site of injury
Exudate
specific gravity greater than 1.020
Exudate
function of Exudate
creates space for healing of damaged tissue
specific gravity less than 1.012
Transudate (not protein rich)
Exudate vs Transudate. Which one is more pathological
Exudate
HyperemiaWhat does it increase?
increase of blood flow via quick vasoconstriction followed by vasodilation and increases the blood hydrostatic pressure
Hyperemia enlarges the capillaries __-__% more than normal
20-30%
slowing blood flow so that its movements in the capillary and venules stops
stasis
blood at ____ end of capillary is more viscus
distal
increased permeability of vessels is caused by
- constriction of endothelia cells inside vessel increasing gaps2. loss of protein into tissue (increases osmotic pressure of tissue)
oncotic:
proteins
Osmotic
solutes
% of blood proteins albumin
55% albumin
% of blood proteins globulins
40-45% (antibodies)
% of blood proteins fibrinogen
5% fibrinogen
benefits of inflammation
- swelling-pain makes you stop activities2. dissolution of toxins-makes them less damaging to tissue3. Exudate-brings antibodies to destroy pathogens4. phagocytosis to destroy pathogens
types of exudate
serous inflammationfibrinous inflammationsuppurative (purulent) inflammation
only fluid is allowed to escape interstitial fluid
serous inflammatione.g. common cold, second degree burns/blisters
enzymatic formation of fibrin strands
fibrinous inflammation (pericarditis, myocarditis, rheumatic pericarditis)
can hear friction rubbing in heart beats
fibrinous inflammation of heart (fluid must be removed)
bad type of inflammation
fibrinous
presence of puss/yellowish color that can transmit disease to other parts of the body
suppurative/Purulent inflammation (should be removed immediately)
Types of suppurative/purulent inflammation
- abscess2. cellulitis3. empyema
type of purulent inflammation: localized accumulation of puss that develops at a focus when the cause can not be neutralized
abscess
formation of cavity due to proteolytic enzymes
lung abscess
abscess in brain
parameningeal abscess
diffuse/widespread formation of suppurative inflammation
cellulitis
abscess only found in pleural and dubural cavity
epyemal
subdural abscess is found in the
arachnoid space
passive witnesses of inflammation
RBCs (hemorrhagic inflammation)
cellular factors of the exudates formation
- rbc’s adhere to eachother, making them aggregate2. WBCs move to the periphery of flow near endothelial cell walls of vessels… “pavementing” 3. Leukocyte emigration (in post-capillary venules)
blood vessels move to walls of periphery when RBCs aggregate is called
“pavementing”
WBCs passing through cell membranes is called
DIAPEDESIS-passive process
active (leukocyte) emigration only occurs in
post-capillary venules
poly-nuclear WBCs
Eosinophils 2basophils 2+neutrophils 2
mononuclear cells
monocyteslymphocytes
what cell is colored blue?
basophil
neutrophils are more commone when?
first 12 hours of inflammation
monocytes increase in number throughout the _____
week
monocytes turn into macrophages when….
they leave the blood
phagocytic cells
neutrophil Nevereosinophin Eatmonocyte Manure
process of phagocytosis
- Chemotaxis2. adherence and engulfing3.digestion4. phagocytosis
oxygen dependent mechanisms for killing an intruder (4)
- lysozyme2. elastase3. collegenase4. defensin
acts like antibodies inside neutrophils
defensins
oxygen dependent mechanisms for killing intruders
free radicals
account for oxidative reactions
hydrogen peroxide
Free radicals
superoxide Superhypochlorite hyhydrogen peroxide hydro
Mediators, cell-derived of inflammation
Histamineserotoninsubstance PNitric Oxide
found in type 1 hypersensitivity reactions
histamine
major reservoir for histamine in the body
mast cells/basophils
Mast cell vs Basophil
Mast cell is fixated on tissuebasophils are in blood
Functions of histamine (4)
- Vasodilation2. Increases permeability of vessels 3. Bronchospasm4. increase mucous production by mucous gland in bronchioles
Increases permeability of vessels aka
endothelial retraction
narrowing of the respiratory tree
brochospasm
aka “hormone of pleasure” that produces platelets and functions similar to histamine
serotonin
substance P functions
promote production of painregulate blood pressureincreases permeability of BV
produced by nervous fibers in the peripheral and Central NS and lungs and GI nervous tissue
Substance P
AKA endothelial derived releasing hormone
Nitric Oxide
produced by endothelial cellls of blood vessels, macrophages brain neurons
Nitric oxide
Inhibitor the cellular component of inflammation
Nitric Oxide
Functions of Nirtic Oxide
Vasodilatorprevents recruitment of neutophil to site of inflammation, inhibits adhesion of WBCs to endothelial cells (pavementing)
55-60% of wbcs
neutophils
2-4% of wbcs
eosinophils (red colored)
.5-1% of wbcs
basophils
20-25% of wbcs
lymphocytes
4-8% in circulation
monocytes
chronic granulomatous
rare, found in TB and leprosy usually due to microbacteriamultinucleated giant cells found combining macrophageshas fibroblasts in out area of fibrous tissue