Acute Inflammation Flashcards
What are the local effects of acute inflammation?
RUBOR TUMOR CALOR DOLOR Loss of function
What are the four processes by which neutrophils migrate?
Margination
Rolling
Adhesion
Emigration
What are the systemic effects of acute inflammation?
Forced rest
Loss of appetite
Increased production of CRP
Chemical mediators responsible for RUBOR?
Histamine
Leukotriene
Prostaglandin
Chemical mediators responsible for TUMOR?
Leukotriene
Prostaglandin
Chemical mediator responsible for CALOR?
Prostaglandin
Bradykinin
Chemical mediator responsible for DOLOR?
Prostaglandin
Bradykinin
What are the causes of acute inflammation?
Microbial infections Hypersensitivity reactions Physical agents Chemicals Tissue necrosis
List the three changes in tissues.
Changes in blood flow
Exudation of fluid into tissues
Infiltration of inflammatory cells
Describe the changes in blood flow.
Transient vasoconstriction of arterioles, followed by vasodilator ion of arterioles and capillaries. Increased permeability of vessels to allow exudation of fluid and therefore swelling.
List the characteristic microscopic features of acute inflammation.
Oedema
Vasodilatation
Neutrophil margination and migration