About posterior cruciate ligament - the true statement is:
Attached to the lateral femoral condyle
Intrasynol
Prevents posterior dislocation of tibia
Relaxed in full flexion
Posterior cruciate ligament prevents posterior dislocation of tibia. Posterior displacement is prevented by anterolateral bundle during knee flexion and by the posteromedial bundle during knee extension.Ref: Human Anatomy, B D Chaurasia, 4th Edition, Volume 2, Chapter 12, Page 145; System Of Ohopaedics And Fractures, Apley, 9th Edition, Chapter 20, Page 584.