What physiological change is a characteristic of the congestion stage of inflammation?

In the congestion stage of inflammation, one of the primary physiological changes is increased blood flow to the affected area. This process, known as hyperemia, occurs as blood vessels dilate and become more permeable, allowing for a greater volume of blood to reach the tissues. The increased blood flow is a response to various chemical signals released from damaged tissue and inflammatory mediators.

This increased circulation brings essential nutrients and immune cells to the site of injury or infection, which is crucial for initiating the healing process. The redness and warmth associated with inflammation are direct results of this enhanced blood flow, highlighting the body's effort to address the underlying issue. Understanding this physiological response is important as it lays the foundation for recognizing how inflammation functions as a protective response, despite its sometimes damaging effects.