Inflammation and Repair Flashcards
Cells that mediate inflammatory processes
- Monocyte
- Lymphocte
- Neutrophil
- Eosinophil
- Basophil
Lymphocyte
Cell with a nucleus that mostly fills cellular space
Neutrophil
polymorphonuclear leukocyte (PMN) cell with few granulocytes
Granulocyte
Eosinophil
polymorphonuclear leukocyte (PMN) cell with many red granulocytes
Granulocyte
Basophil
polymorphonuclear leukocytes (PMN) cell with many blue granulocytes
Granulocyte
What do cells that mediate inflammatory response have in common?
- Granulation
- PMN
Cellular Response
part of inflammatory response is delivery of leukocytes to injury
How do Leukocytes get to the site of injury in acaute inflammation (cellular Response)?
- Margination and rolling
- Adhesion
- Transmigration
- Chemotaxis
Neutrophil is the ____
Monocyte is the _____
First responder
Second Responder
Once the Leukocyte destroys the pathogen …
- Recognition and attachment to pathogen
- Engulfment of pathogen
- Killing and degradation of pathogen
1.Recognition and attachment to pathogen
Pattern Recognition
Opsonins
Cytokine Receptors
Monocyte
Large (oddly shaped) cell with a nucleus that does not fill cellular space
In blood→ monocyte in body→macrophage
- Engulfment of pathogen
When opsonins are sensed
Celecoxib
Cyclooxygenase II inhibitor ( reduces inflammation)
Cyclooxygenase II meabolizes Arachidonic Acid to cause inflammation
In chronic Inflammation
early following an injury, which macrophage predominates?
Alternatice Activation (M2)
Monocytes in
Blood
Liver
Bone
Connective Tissue
Brain
Blood- Macrophage
Liver- Kupffer cell
Bone- Osteoclast
Connective Tissue- Histiocyte
Brain- Microglia
What factors influence repair
- Infection
- Nutrition
- Glucocorticoids
- Poor perfusion
- Foreign bodies
- Location
What are the two types of Repair?
- Regeneration
- Scar Formation
Regeneration Repair
Tissue is able to replace the dmaged cells and return to normal function
Scar Formation Repair
Layering of connective (scar) tissue as a less effective replacement for native tissue.
Labile tissue …
have cells that are always proliferating
incision wounds
longer that they are deep
stab wound
deeper than the are long
Puncture wounds
caused by sharp point, but not a sharp edge
chopping wounds
combination of blunt and sharp characteristics
Second intention wounds
healing wider wounds leads to scaring
First Intention wounds
Healing Incision Wounds
leads to regeneration
What happens of the INterstial Matrix/ISM is damaged?
Scar is formed
Need an intact ISM/ Interstitial Matrix for…
regeneration
scar formaiton repair steps
- Angiogenesis- (No and VEGFS)
- Migration and Proloferation- of fibroblasts and depostion of connective tissue (granulation tissue)
- Remodeling to produce scar
scar
more granulation tissue
what are factors that infulence tissue repair
- Infection
- Nutrition
- Glucocorticoids
- Poor perfusion
- Foreign Bodies
- Location