What is a sprain?

What is a sprain?

• A. A dislocation of the joint
• B. Overstretching of a muscle
• C. Fracture of a bone
• D. Twisting a joint leading to swelling and injury to ligaments, tendons, blood vessels, and nerves

Answer: (D)

A sprain is an injury to the ligaments around a joint caused by twisting or wrenching the joint, which leads to swelling, pain, and sometimes instability. Ligaments connect bone to bone and stabilize joints, so when they’re stretched or torn in a twist, the surrounding tissues swell as part of the inflammatory response. The description that best fits this is twisting a joint leading to swelling and injury to ligaments and nearby soft tissues, because it captures both the mechanism (twisting) and the primary structures affected (ligaments). In contrast, a dislocation involves bones being forced out of their normal alignment, a fracture is a break in bone, and a muscle strain is overstretching of a muscle rather than ligaments.

A sprain is an injury to the ligaments around a joint caused by twisting or wrenching the joint, which leads to swelling, pain, and sometimes instability. Ligaments connect bone to bone and stabilize joints, so when they’re stretched or torn in a twist, the surrounding tissues swell as part of the inflammatory response. The description that best fits this is twisting a joint leading to swelling and injury to ligaments and nearby soft tissues, because it captures both the mechanism (twisting) and the primary structures affected (ligaments). In contrast, a dislocation involves bones being forced out of their normal alignment, a fracture is a break in bone, and a muscle strain is overstretching of a muscle rather than ligaments.