ACL is a major ligament of which joint?

• A. Ankle
• B. Shoulder
• C. Knee
• D. Wrist

Answer: (C)

The ACL is a major ligament of the knee. It lies inside the knee joint, crossing from the front of the tibia to the back of the femur, and it helps prevent the tibia from sliding forward and provides rotational stability. Because of its location and function, the ACL is specifically associated with the knee, not the ankle, shoulder, or wrist. The other joints have their own ligaments—ankle ligaments stabilize the ankle, shoulder ligaments stabilize the shoulder, and wrist ligaments stabilize the wrist—but they do not involve the ACL.