Final answer:
Inflammation is the body's response to injury and can be caused by various factors including injuries, allergic reactions, and infections. It helps limit injury, eliminates the cause, and initiates tissue repair.
Step-by-step explanation:
Inflammation is the body's standard response to injury, such as cuts and sprains, and it can also be caused by ischemia or infarction, allergic reactions, and infection. Inflammation helps limit the extent of injury, eliminates the cause of injury, and initiates tissue repair and regeneration. The signs and symptoms of inflammation include redness, swelling, warmth, pain, and sometimes loss of function. If inflammation persists, it can become chronic and lead to diseased conditions.