Term
What are some ways in which our bodies protect us against injury? |
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Definition
-physical barriers of intact skin and mucosa -antibacterial activity of enzymes in saliva in tears -flushing action of saliva, tears, urine, and diarrhea |
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Term
What is an inflammatory response? |
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Definition
a nonspecific or innate response to injury |
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Term
Does the inflammatory response vary throughout the entire body? |
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Definition
no, it occurs the same way no mater where in the body the injury has occured |
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Term
Is the inflammatory response only local? |
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Definition
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Term
is the inflammatory response acute? |
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Definition
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Term
What can acute inflammation develop in to? |
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Definition
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Term
How are inflammatory responses named? |
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Definition
named by adding "itis" after the tissue involved |
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Term
What are the cardinal signs of inflammation? |
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Definition
1.redness 2.heat 3.swelling 4.pain 5.loss of function |
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Term
What are the microscopic events of inflammation? (10) |
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Definition
1.injury 2.constriction of microcircultion (to stop bleeding) 3.dialation of microcirculation 4.increase in permeability of microcirculation 5.exudate formation 6.increased blood viscosity 7.decreased blood flow through the microcirculation 8.margination and pavementing of WBC 9.WBC leave circulation and enter tissue 10.WBC ingest foreign and dead material |
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Term
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Definition
-fluid -proteins from blood -dead and injured cells |
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Term
What can the type of exudate tell you? |
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Definition
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Term
What is serous composed of? |
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Definition
-mainly plasma fluid -proteins |
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Term
What is serous associated with? |
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Definition
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Term
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Definition
-lots of WBC's -tissue debris |
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Term
What is purulent associated with? |
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Definition
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Term
What does mucinous contain? |
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Definition
lots of mucous secretions |
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Term
What is fibrinous composed of? What is it? |
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Definition
large amounts of fibrin, bloody sputum |
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Term
What do chemical mediators do? |
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Definition
start or ampifly the inflammatory response |
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Term
Where do chemical mediators come from? |
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Definition
the blood, endotheial cells, WBC, platelets, microoganisms |
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Term
Where is histomine released from? |
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Definition
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Term
Where is serotonin released from? |
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Definition
platelets and acts like histamine |
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Term
What does the Kinin system do? |
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Definition
bradykinin acts like histamine and causes pain |
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Term
What does the fibrinolytic system do? |
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Definition
plasmin acts to activate clotting mechanism and activate kinin system |
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Term
Where are protaglandins and leukotrienes released from and what do they do? |
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Definition
-released from WBC's -caused continued dialation, pain, and production of MMP enzymes |
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Term
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Definition
induce breakdown of collagen |
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Term
What are the different cytokins? |
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Definition
-interleukin-1 (IL-1) -IL-6 -IL-8 -tumor necrosis factor(TNF) |
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Term
What do cytokins do? Where are they released from? |
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Definition
-released by WBC -cause continued movement of WBC to the area |
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Term
Histamine, serotonin, kinin system, fibrinolytic system, prostagladins, and leukotrines, and cytokins are all examples of what? |
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Definition
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Term
Which cells are responsible for acute infmallation? |
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Definition
neutrophils(PMN), esinophils |
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Term
How do neutrophil's work in acute inflammation? |
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Definition
they are the first to arrive and are effective against bacterial & fungal infections |
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Term
What type of reaction are eosinophils seen in? |
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Definition
they are seen in hypersensitivity reactions |
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Term
What kind of cells are seen in chronic infections? |
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Definition
-macrophages and giant cells -lymphocytes (T & B) -fibroblasts and endothelial cells |
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Term
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Definition
-mesh of fibrin -platelets -RBC |
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Term
What migrates to the area during clot formation? |
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Definition
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Term
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Definition
function to debride area and secrete cytokins(IL-1) |
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Term
What do cytokins(IL-1) do? |
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Definition
stimulate growth of fibroblasts and endothelial cells |
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Term
Healing can be by BLANK or BLANK intention. |
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Definition
Healing can be by primary or secondary intention. |
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Term
When is primary intention seen? |
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Definition
in small injuries, skin is brought back together |
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Term
When is secondary intention seen? |
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Definition
with large injuries, more scar tissue formed |
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Term
What is granulation tissue? |
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Definition
tissue that forms after inflammatory response |
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Term
What is granulation tissue made of? |
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Definition
immature collagen fibers and blood vessels |
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Term
What are some factors that effect healing? |
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Definition
-age -nutritional status -immune status -smoking -local factors |
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Term
What are restitution, resolution, and regeneration? |
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Definition
these are a form of repair |
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Term
What does restitution, resolution, and regeneration help do? |
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Definition
helps tissue return to normal structure and function, destroyed tissue is regenerated |
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Term
When does regeneration occur? |
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Definition
if destruction was not extensive and cells are capable of regeneration |
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Term
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Definition
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Term
What are some examples of systemic manifestations of inflammation? |
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Definition
-fever -leukocytosis -lymphadenopathy -elevated C-reactive protein |
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Term
What are some tissues not capable of regeneration? |
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Definition
-brain -cardiac muscle -skeletal muscle |
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Term
What are some tissues that are capable of regeneration? |
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Definition
-epidermis -gastrointestional epithelium -bronchial epithelium -bone marrow -liver -kidney |
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