This front view of the knee shows three of the four ligaments of the
knee. The posterior cruciate ligament is not shown; it is behind the ACL. The
four knee ligaments connect the upper leg bone (femur) with the large lower leg
bone (tibia) and stabilize knee movement.
ByHealthwise Staff Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine Specialist Medical ReviewerFreddie H. Fu, MD - Orthopedic Surgery