Final answer:
Signs of inflammation include redness, swelling, pain, heat, and sometimes loss of function, as part of the body's response to injury or infection.
Step-by-step explanation:
The signs of inflammation include redness, swelling, pain, and local heat. These are considered the four cardinal signs of inflammation, which were first recorded in antiquity by Cornelius Celsus. The fifth sign, loss of function, may also accompany inflammation. These signs result from a complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. The process involves the movement of leukocytes and fluid through opened capillaries to the site of injury or infection, leading to the localized symptoms we recognize as inflammatory.