Inflammation Flashcards
a protective response to rid the body of the cause of cell injury and the resultant necrotic cells that cell injury processes
Inflammation
cells involved in inflammation
- leukocytes
- endothelial cells
- cells and the ECM surrounding the tissue
- plasma proteins
rapid onset, last for minutes to days
acute inflammation
longer time course (days to years), involves different ell types
chronic inflammation
5 signs and symptoms
- calor
- rubor
- tumor
- dolor
- loss of function
causes of acute inflammation
Trauma Infection physical and chemical agents foreign bodies immune reactions necrosis
stages of acute inflammation
Vasodilation
increase vascular permeability
movement of WBC from blood vessels to soft tissue of the site of inflammation
mediators of vasodilation
histamine, prostaglandins, nitric oxide
what are the cells involve in histamine
mast cells, basophils, platelets
responsible for the pain and fever
prostaglandin
hallmark
increase vascular permeability
mediators of increase vascular permeability
histamine, bradykinin, leukotrienes c4, d4 and e4
vasoconstrictor, chemotactic factors that cause bronchospasms (asthma attack)
leukotrienes
process of increase in vascular permeability
retraction of endothelial cells, damage to endothelial cells and transcytosis
steps in movement of WBC..
rolling
pavementing
transmigration