The forward displacement of tibia on the femur is prevented by: (A) Anterior cruciate ligament, (B) Posterior cruciate ligament, (C) Medical collateral ligament, (D) Lateral collateral ligament
Answer is A. Anterior cruciate ligament prevents posterior displacement of the femur on the tibia and hyperextension of the knee joint. When the joint is flexed at a right angle, the tibia cannot be pulled anteriorly because it is held by the ACL.**watch the wordings carefullyReference: Chaurasia; 6th edition