Origin of PCL- Posterior cruciate ligament
Correct Answer: Posterior pa of intercondylar area of tibia
Description: Posterior cruciate ligament (PCL) PC L begins from posterior pa of intercondylar area of tibia and runs upwards, forwards and medially to attach the anterior pa of the lateral surface of medial condyle of femur. PCL is extrasynol but intracapsular, i.e. lies between synovium and capsule of the knee joint. It provides antero-posterior stability and prevents posterior gliding of tibia on femur. It is taut in flexion. Blood supply of cruciate (anterior & posterior) ligaments is from :- Middle genicular aery (major supply). Inferior genicular (medial & lateral) aery (less impoant). Nerve supply of cruciate ligaments (ACL & PCL) is from posterior aicular branch of tibial nerve.
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Anatomy
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