Which of the following statements is true regarding the inflammatory response?

The statement that the inflammatory response is a reaction to tissue injury and infection is indeed true. The inflammatory response is an essential part of the immune system's effort to protect the body. When tissue is damaged, whether due to physical injury, infection by pathogens, or various other stimuli, the body initiates an inflammatory response to begin healing and to prevent further injury.

During this process, blood vessels in the affected area dilate, allowing increased blood flow, which brings essential immune cells to the site of injury or infection. This infiltration of white blood cells is crucial for fighting off pathogens and beginning the repair of damaged tissues. Inflammation is characterized by signs such as redness, heat, swelling, and pain, all of which signal that the body is working to address the injury or infection.

The other options do not accurately describe the characteristics of the inflammatory response. For example, instead of reducing blood flow, inflammation actually increases it, which is vital for healing. Additionally, inflammation does not result in coldness; rather, it often causes warmth due to increased blood flow. Lastly, while inflammation can affect mobility due to pain or swelling, it is not primarily aimed at enhancing mobility but rather at initiating a healing process.