What type of inflammation is characterized by localized swelling and redness?

The correct answer is acute inflammation. This type of inflammation typically occurs as a direct response to an injury or infection, resulting in distinct and immediate symptoms such as localized swelling, redness, heat, and pain. These manifestations are due to increased blood flow and the accumulation of immune cells at the site of injury or infection.

Acute inflammation is characterized by these rapid onset symptoms, which serve to protect the body by healing tissues and defending against pathogens. The localized nature of acute inflammation allows for targeted healing and a stronger immune response.

Other forms of inflammation, such as chronic inflammation, can evolve from acute inflammation but are characterized by more prolonged symptoms and can occur over an extended period. Systemic inflammation affects the entire body and is typically associated with widespread immune responses, whereas granulomatous inflammation involves the formation of granulomas—clusters of immune cells forming around chronic infections or irritants—and is not primarily marked by localized redness and swelling.