What event does not occur in stage 1 of injury?

Stage 1 of injury typically refers to the acute inflammatory phase, which occurs immediately after tissue damage. During this stage, the body initiates a response to the injury, which includes various physiological events.

Swelling occurs as a result of increased blood flow and fluid accumulation in the affected area, which helps to deliver nutrients and immune cells necessary for healing. Pain is also a hallmark of this stage, serving as a signal indicating injury or damage to the tissue, and prompting protective behavior to avoid further harm. Loss of function can arise from both swelling and pain, impairing the ability to move or use the affected area adequately.

Scar tissue formation, however, primarily takes place during the later stages of healing, which follow the initial inflammatory phase. This process involves the remodeling and maturation of tissue as the body lays down collagen and other components to repair the damaged area. The formation of scar tissue is not a characteristic of stage 1, making it the correct answer in this context. Understanding the timeline of these events is crucial for effective injury management and rehabilitation strategies.