#knee_joint__knee__articulatio_genus__articulatiogenu  hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella
  supertype:  hinge_joint__ginglymus__ginglymoid_joint  a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane
  part of:  leg
  part:  patella__kneecap  a small flat triangular bone in front of the knee that protects the knee joint
  part:  musculus_articularis_genus  the articular muscle of the knee
  part:  genicular_vein__genicularvein__vena_genus  veins that drain blood from structures around the knee; empty into the popliteal vein

No statement uses or specializes knee_joint; click here to add one.