Define inflammation
Protective response to infection or tissue injury aiming to eliminate cause and initiate repair
What are the cardinal signs of inflammation?
Redness; heat; swelling; pain; loss of function
Difference between acute and chronic inflammation
Acute is rapid and neutrophil‑dominated; chronic is prolonged and macrophage/lymphocyte‑dominated
Key mediators of acute inflammation
Histamine; prostaglandins; TNF‑α; IL‑1; chemokines
Steps of leukocyte extravasation
Rolling; adhesion; diapedesis; chemotaxis
What leads to resolution of inflammation?
Removal of stimulus and anti‑inflammatory cytokines such as IL‑10 and TGF‑β