Final answer:
The signs and symptoms of a knee ligament injury typically consist of swelling, point tenderness, and joint effusion, all indicating inflammation caused by the injury.
Step-by-step explanation:
The signs and symptoms of a knee ligament injury include swelling, point tenderness, and joint effusion. These symptoms can arise due to the inflammation caused by the injury to ligaments, which are tough bands of connective tissue that connect bones at a joint. An injury can occur from the overextension or twisting of the knee, potentially causing strains or tears to the ligaments. Swelling arises from increased blood flow and other processes at the site of injury, while point tenderness refers to pain that is felt at the specific area of the injured ligament. Joint effusion is characterized by increased fluid within the joint space, typically resulting from inflammation or bleeding within the joint.