Which sequence represents the inflammatory response?

The inflammatory response is a complex biological process that occurs in response to tissue injury or trauma. The correct sequence of this process starts with an injury, which triggers a cascade of physiological responses.

Initially, when an injury occurs, the body begins to respond by initiating inflammation. This is characterized by the subsequent development of pain, which serves as a protective mechanism to prevent further damage to the affected area. Pain often results from the release of inflammatory mediators that increase sensitivity in the surrounding tissues.

Following the onset of pain, swelling typically occurs as blood vessels become more permeable, allowing fluids and immune cells to move into the affected area. The accumulation of fluid leads to swelling and contributes to the sensation of pain. This is an essential part of the healing process as it helps to isolate the area and bring necessary nutrients and immune cells for repair.

Spasm can also develop as a protective response to the initial injury and pain, where muscles around the injury site contract to limit movement and prevent further damage. However, it is a secondary response following the pain and swelling.

Thus, the sequence of injury, followed by pain, then swelling, and culminating with spasm accurately reflects the typical progression of the inflammatory response in the body.