What injury involves muscles and tendons?

The correct choice highlights a strain, which specifically involves the overstretching or tearing of muscles or tendons. When a muscle or tendon is subjected to excessive force or tension, it can result in a strain, commonly experienced during physical activities or sports. This type of injury is often characterized by pain, swelling, and limited movement in the affected area.

In contrast, a fracture pertains to a break in a bone, which does not directly involve muscles or tendons. A sprain involves the ligaments, connecting bones at a joint, and typically occurs when a joint is twisted or impacted beyond its normal range of motion. An incision relates to a clean cut or surgical opening in the skin, which is not classified as a musculoskeletal injury. Understanding these distinctions helps in effectively diagnosing and treating different types of injuries within the realm of sports and physical activities.