This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Which of the following is true about posterior cruciate ligament 
Select and explain. 
A. Attached to lateral femoral condyle, B. Intrasynol, C. Prevents posterior dislocation of tibia, D. Relaxed in full flexion
C: Prevents posterior dislocation of tibia
Answer: C: Prevents posterior dislocation of tibia 
Explanation: C i.e., Prevents posterior dislocation of tibiaThe synol lining of knee joint follows the capsule, except posteriorly where it is reflected forward around the front of cruciate ligaments, forming a common covering of both ligaments. Hence the cruciate ligaments are extra synol but intracapsular. These lie behind synol cavity & are not bathed in synol fluid.