Inflammation and Immune Response
Inflammation is a fundamental protective response of the immune system to harmful stimuli, such as pathogens, damaged cells, or irritants. This vital process is characterized by the classic signs of redness, heat, swelling, and pain, which result from increased blood flow, vascular permeability, and the migration of immune cells from the bloodstream into the affected tissues. As a cornerstone of the innate immune response, inflammation serves to localize and eliminate the injurious agent, clear out cellular debris, and initiate tissue repair, while also acting as a critical signal to activate and direct the more specific, long-lasting adaptive immune response.
- Introduction to Inflammation and the Immune System
- Defining Inflammation
- Overview of the Immune System