Illustration of a posterior knee joint. Between the femoral condyles is the posterior cruciate ligament (PCL) with the anterior cruciate ligament ligament (ACL) partly visible. Menisci are load-bearing, reduce friction and create a concave surface for femoral movement. The ACL prevents excessive posterior displacement of the femur. The PCL prevents excessive anterior displacement of the femur. From Lizars, J. 1823 A system of anatomical plates of the human body. W. , Edinburgh.

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Photo credit: © MICROSCAPE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: anatomical, anatomy, anterior, artwork, background, body, condyle, cruciate, femoral, human, illustration, joint, knee, ligament, lizars, meniscus, posterior, white