Final answer:
Inflammation develops in response to tissue damage or infection, involving an increase in blood flow and vascular permeability to facilitate immune cells reaching the affected area. It is part of the innate immune system's immediate response.
Step-by-step explanation:
Inflammation develops c) In response to tissue damage or infection. This is a defensive mechanism by which the body's immune system responds to injury or invasion by pathogens. The process involves various immune cells and includes an increase in blood flow and vascular permeability, facilitating the migration of immune cells to the affected area.
When tissue injury occurs, injured cells release chemicals like histamine that lead to vasodilation, increasing blood flow which contributes to the redness and warmth often observed with inflammation. Immune complexes accumulating in tissues can induce a type III hypersensitivity, associated with some inflammatory responses. Inflammation is part of the innate immune system's immediate response to infections and can become chronic if the underlying cause is not resolved.