Final answer:
A ligament sprain is a painful acute condition characterized by redness, swelling, pain, and local heat. They can be treated with the RICE technique and more severe cases may require surgery. The signs of inflammation are caused by increased blood flow and other processes in response to injury or infection.
Step-by-step explanation:
A ligament sprain is a painful acute condition characterized by four key signs of inflammation: redness, swelling, pain, and local heat. Ligament injuries occur when a joint gets twisted or bent too far, causing strain or tears in the ligaments. Ankle sprains are a common type of ligament sprain.
Most ankle sprains can be treated using the RICE technique: Rest, Ice, Compression, and Elevation. For more severe injuries involving ligament tears or bone fractures, surgery may be required.
The four cardinal signs of inflammation were first documented in antiquity and include redness, swelling, pain, and local heat. Loss of function may also accompany inflammation. These symptoms are caused by increased blood flow and other processes in response to injury or infection.